All ColumnsSymptom Guide
SYMPTOMS

Mild Asthma & Emphysema | Onsen Bathing and Respiratory Function

Published May 6, 2026·1min read

Mild asthma and emphysema carry a general bathing indication across all 10 Japanese spring types. Hydrostatic pressure on the chest trains respiratory muscles, and warm humid air loosens mucus secretions. Severe asthma and acute attacks are contraindications.

Mild Asthma & Emphysema | Onsen Bathing and Respiratory Function
Applicable spring types
10 types
Analysis records
120 records
Table of Contents
  1. Effective spring types for mild asthma and emphysema
  2. How onsen helps respiratory conditions
  3. Bathing tips for mild asthma and emphysema

Effective spring types for mild asthma and emphysema

Mild asthma and emphysema carry a general bathing indication across all 10 spring types. Because the benefit comes from thermal and hydrostatic physical action, any spring type qualifies — but it is safest to start with low-stimulation springs.

low stimulation, safe to start with even for sensitive airways

warms readily and gently heats the airways

high heat retention, slow to cool down after

See the full 10-spring-type guide

How onsen helps respiratory conditions

Hydrostatic water pressure on the chest during bathing provides resistance training for the diaphragm and intercostal muscles. Warm, humid air softens airway mucus, facilitating expectoration. Sulfur springs and carbon dioxide springs deliver inhaled components that may have additional airway effects.

Filter on the map & mineral viewer

Filter by the relevant spring types and find onsen you like from the map or list. Compare analysis details with the mineral viewer.

Find onsen by these spring types

Bathing tips for mild asthma and emphysema

  1. Bathe only when mild and stable — avoid acute attack phases
  2. Start with low-stimulation springs such as simple springs; approach strong springs (e.g. sulfur) cautiously
  3. If chest pressure feels uncomfortable, use a half-body bath to reduce load on the chest
  4. Avoid inhaling steam deeply, and get out before overheating

Related Onsen Facilities

40 matches
Osawa Onsen Simple Spring
Simple SpringVerified
Osawa Onsen
大沢温泉 湯治屋
Iwate 花巻市· 大沢温泉 (大沢の湯)Osawa Onsen
A beauty hot spring with a rich texture that deeply moisturizes the skin.

Osawa Onsen, a famed hot spring in Iwate reportedly beloved by author Kenji Miyazawa, draws from the "Osawa-no-Yu" source. It boasts a silky, lotion-like texture, a gift of its high alkalinity at pH 9.0. Soaking in this smooth water, like a fine lotion, gently exfoliates the skin, leaving it feeling exceptionally smooth after your bath. It's a gentle, healing spring that soothes both mind and body, perfect for those seeking a peaceful escape to unwind and care for themselves.

Onsen RyokanDay-use Bath
StimulationBactericidalSkin BeautyHeat RetentionRelaxation
pHStrongly Alkaline9
0714
TEMP51.2
0℃50℃100℃
KEY MINERALS
5.8 mg/kg

A trace antibacterial component that keeps skin clean.

A trace component with gentle antibacterial and anti-inflammatory action.

A natural moisturizer that leaves a hydrated feel on the skin.

Check Availability & Rates
PRIncludes affiliate links
Oyado Nurukawaonsen Simple Spring
Simple SpringVerified
Oyado Nurukawaonsen
御宿 ぬるかわ温泉
Oita Yufu· ぬるかわ温泉
The Skin-Nourishing Spring

Gushing in the renowned Yufuin Onsen region, the Nurukawa Onsen source is beloved for its tranquil setting despite being conveniently located near Lake Kinrin. This spring is characterized by its soft, clear, and gentle water, a classic simple onsen cherished by many facilities in Yufuin. Its weakly alkaline nature is mild on the skin, leaving you feeling refreshed yet deeply warmed after bathing. It's the perfect spring for days when you want to gently unwind both mind and body amidst the idyllic scenery of Mount Yufu.

Onsen RyokanPrivate Rental BathRoom with Open-air Bath
StimulationBactericidalSkin BeautyHeat RetentionRelaxation
pHMildly Alkaline8.3
0714
TEMP68.3
0℃50℃100℃
KEY MINERALS

A natural moisturizer also used in skincare lotions. Forms a thin veil on the skin to reduce moisture loss after bathing.

Softens dead skin cells for a silky bathing feel.

A trace component with gentle antibacterial and anti-inflammatory action.

Check Availability & Rates
PRIncludes affiliate links
Onneyu Onsen Tsutsuji Sou Simple Spring
Simple SpringInfo pending
Onneyu Onsen Tsutsuji Sou
温泉民宿 つつじ荘
Kyoto Rubeshibe, Kitami· いずほ3号井
The Alkaline Awakening Spring

The Izumi Gōi Gensen is the vital source supporting Onneyu Onsen, a renowned hot spring in Hokkaido, whose name translates to "large hot water" in the Ainu language. Since its establishment in 1899, this region has been cherished as a "skin-beautifying spring." The thick, highly alkaline water from this source gently envelops the skin, leaving it remarkably smooth and silky after bathing, as if adorned with a delicate veil. It is an ideal spring for those wishing to experience nature's blessings and enhance their skin's condition.

Onsen Ryokan
StimulationBactericidalSkin BeautyHeat RetentionRelaxation
pHStrongly Alkaline9.2
0714
TEMP45.7
0℃50℃100℃
KEY MINERALS
5.6 mg/kg

A trace antibacterial component that keeps skin clean.

A natural moisturizer that leaves a hydrated feel on the skin.

Gentle antibacterial action that conditions the skin.

Check Availability & Rates
PRIncludes affiliate links
Tounosawaonsen Motoyu Kansuirou Simple Spring
Simple SpringInfo pending
Tounosawaonsen Motoyu Kansuirou
元湯 環翠楼
Kanagawa Hakone· 湯元第37, 50, 110号混合Hakone Onsen
The Harmonious Skin-Beautifying Spring

Hakone Yumoto Onsen, the historic gateway to Hakone Onsenkyo, opened in the Nara period and flourished as the foremost of the 'Hakone Nanayu' (Seven Hot Springs of Hakone) during the Edo period. This particular hot spring vein, a pillar of the region's heritage, offers thick, soft waters that gently envelop the skin, promoting deep relaxation for both mind and body. After bathing, the wonderfully smooth skin feel provides a comforting embrace, inviting guests to forget daily hustle and bustle and indulge in self-care.

Onsen RyokanDay-use BathPrivate Rental BathRoom with Open-air Bath
StimulationBactericidalSkin BeautyHeat RetentionRelaxation
pHMildly Alkaline8.8
0714
TEMP48.2
0℃50℃100℃
KEY MINERALS

A natural moisturizer that leaves a hydrated feel on the skin.

A trace component with gentle antibacterial and anti-inflammatory action.

Gentle antibacterial action that conditions the skin.

Check Availability & Rates
PRIncludes affiliate links
Oyado Uraku Simple Spring
Simple SpringVerified
Oyado Uraku
由布院温泉 お宿 有楽
Oita Yufu· お宿 有楽
The Spring that Nurtures Yufu's Silky Skin

The Oyado Yuraku Gensen is a private source bubbling up in the central area of Yufuin Onsen, a town known for its idyllic rural landscapes at the foot of Mt. Yufu. Many of Yufuin's springs, a long-cherished health resort area, are classified as simple hot springs gentle on the skin. This source is one of them, characterized by its mild and soft touch. Immersing yourself in its waters feels like being embraced by the serene nature of Yufuin, offering a peaceful respite for resetting mind and body away from daily life.

Onsen RyokanRoom with Open-air Bath
StimulationBactericidalSkin BeautyHeat RetentionRelaxation
pHMildly Alkaline8.3
0714
TEMP49.4
0℃50℃100℃
KEY MINERALS

A natural moisturizer also used in skincare lotions. Forms a thin veil on the skin to reduce moisture loss after bathing.

A trace component with gentle antibacterial and anti-inflammatory action.

Softens dead skin cells for a silky bathing feel.

Check Availability & Rates
PRIncludes affiliate links
Unazuki Onsen Yamanoha Simple Spring
Simple SpringInfo pending
Unazuki Onsen Yamanoha
宇奈月温泉やまのは
Toyama 黒部市· 宇奈月温泉Unazuki Onsen
Pristine Piped Gorge Spring

This hot spring embodies the enduring passion of pioneers, delivered from Kuronagi Onsen in the upper reaches of the Kurobe River to Unazuki Onsen, approximately 7km downstream, after arduous wooden pipe laying construction in Taisho 12 (1923). Gushing at an abundant rate of approximately 2,000 liters per minute, its colorless and transparent waters seem to embody the pristine clarity of the gorge itself. With a soft touch that gently envelops the skin, it slowly warms the body to its core. Ideal for those seeking to unwind their mind and body, embraced by nature, at the various inns and public bathhouses throughout the town.

Onsen RyokanPrivate Rental Bath
StimulationBactericidalSkin BeautyHeat RetentionRelaxation
pHMildly Alkaline8.2
0714
TEMP98.3
0℃50℃100℃
KEY MINERALS
6.2 mg/kg

A trace antibacterial component that keeps skin clean.

A trace component with gentle antibacterial and anti-inflammatory action.

A natural moisturizer that leaves a hydrated feel on the skin.

Check Availability & Rates
PRIncludes affiliate links
Hakonekowakiemmikawayaryokan Simple Spring
Simple SpringVerified
Hakonekowakiemmikawayaryokan
箱根小涌園 三河屋旅館
Kanagawa Hakone· 小涌谷温泉 温泉村第59-3号、温泉村 第100号 混合泉Hakone Onsen
A Heritage Spring of Meiji Memory

Once a desolate area called "Lesser Hell," this land was renamed Kowakidani following a visit by Emperor Meiji, sparking its development as a hot spring resort. This combined source is one of several springs utilized in this historic onsen town. Developed by entrepreneurs in the Meiji era, the area saw the construction of numerous inns and villas. This very source has supplied water to accommodations throughout the Kowakidani area, laying the foundation for Hakone's modern onsen culture.

Onsen RyokanPrivate Rental BathRoom with Open-air BathTattoo OK (public bath)
StimulationBactericidalSkin BeautyHeat RetentionRelaxation
pHMildly Alkaline8.4
0714
TEMP74
0℃50℃100℃
KEY MINERALS

A natural moisturizer also used in skincare lotions. Forms a thin veil on the skin to reduce moisture loss after bathing.

A trace component with gentle antibacterial and anti-inflammatory action.

Softens dead skin cells for a silky bathing feel.

Check Availability & Rates
PRIncludes affiliate links
Isawa Onsen Simple Spring
Simple SpringVerified
Isawa Onsen
旅館 日の出温泉
Yamanashi Fuefuki· 旅館 日の出温泉1Isawa Onsen
Gentle Mildly Alkaline Waters

Nestled in Kasugai-cho, Fuefuki City, Yamanashi Prefecture, a region renowned for its grape cultivation, this gentle hot spring is a true blessing from the earth, cherished by locals for generations. Its lukewarm waters, around 36.3℃, offer a comfort that invites you to linger indefinitely. The soft, weakly alkaline water delicately envelops the skin, gradually releasing tension from the body's core. It's a soothing retreat for those seeking to alleviate daily fatigue and find deep relaxation in mild waters.

Onsen RyokanDay-use BathPrivate Rental Bath
StimulationBactericidalSkin BeautyHeat RetentionRelaxation
pHMildly Alkaline8.1
0714
TEMP36.3
0℃50℃100℃
KEY MINERALS

A natural moisturizer also used in skincare lotions. Forms a thin veil on the skin to reduce moisture loss after bathing.

A trace component with gentle antibacterial and anti-inflammatory action.

93.1 mg/kg

Softens dead skin cells for a silky bathing feel.

Check Availability & Rates
PRIncludes affiliate links
Yufuinonsen Yufunogou Saigakukan Simple Spring
Simple SpringVerified
Yufuinonsen Yufunogou Saigakukan
柚富の郷 彩岳館
Oita Yufu· 柚富の郷 彩岳館 温湯Yufuin Onsen
Yufu's Blessing, a Silky Skin Spring

This is one of the private sources gushing in Yufuin Onsen, one of Japan's most popular hot spring resorts. The "On-yu" source is a simple hot spring drawn from within the property, known for being gentle and suitable for everyone due to its low mineral content. Its weak alkalinity of pH 8.2 gently removes dead skin cells, leaving the skin feeling smooth. Rich in metasilicic acid, a natural moisturizing component, it helps hydrate the skin after bathing. This spring is recommended for those seeking a gentle bath to unwind both body and soul while surrounded by the majestic nature of Mount Yufu.

Onsen RyokanPrivate Rental BathRoom with Open-air Bath
StimulationBactericidalSkin BeautyHeat RetentionRelaxation
pHMildly Alkaline8.2
0714
TEMP44.9
0℃50℃100℃
KEY MINERALS

A natural moisturizer that leaves a hydrated feel on the skin.

Softens dead skin cells for a silky bathing feel.

0.9 mg/kg

A trace antibacterial component that keeps skin clean.

Check Availability & Rates
PRIncludes affiliate links
Osawa Onsen Sansuikaku Simple Spring
Simple SpringVerified
Osawa Onsen Sansuikaku
大沢温泉 山水閣
Iwate 花巻市· 大沢温泉 (大沢の湯)Osawa Onsen
A beauty hot spring with a rich texture that deeply moisturizes the skin.

Osawa Onsen, a famed hot spring in Iwate reportedly beloved by author Kenji Miyazawa, draws from the "Osawa-no-Yu" source. It boasts a silky, lotion-like texture, a gift of its high alkalinity at pH 9.0. Soaking in this smooth water, like a fine lotion, gently exfoliates the skin, leaving it feeling exceptionally smooth after your bath. It's a gentle, healing spring that soothes both mind and body, perfect for those seeking a peaceful escape to unwind and care for themselves.

Onsen RyokanPrivate Rental Bath
StimulationBactericidalSkin BeautyHeat RetentionRelaxation
pHStrongly Alkaline9
0714
TEMP51.2
0℃50℃100℃
KEY MINERALS
5.8 mg/kg

A trace antibacterial component that keeps skin clean.

A trace component with gentle antibacterial and anti-inflammatory action.

A natural moisturizer that leaves a hydrated feel on the skin.

Check Availability & Rates
PRIncludes affiliate links
Yufuinyuuberu Simple Spring
Simple SpringInfo pending
Yufuinyuuberu
湯布院温泉 由布院ユウベルホテル
Oita Yufu· 由布院ユウベルホテル1号泉
The Soothing Spring for Silky Skin

Gushing forth in the Yufuin Onsen area at the foot of Mt. Yufu, the Yufuin Yubel Hotel No. 1 Spring embodies the town's spirit. Yufuin, one of Japan's most famous hot spring resorts, has a history of avoiding boisterous development, instead cultivating a tranquil retreat where pastoral landscapes meet art. This alkaline simple spring, with its low-irritant properties, is a perfect expression of that philosophy. The soft, pH 8.5 water gently envelops the skin, leaving it feeling smooth and refreshed after bathing. It is a fine spring that offers a peaceful escape for those seeking to unwind both body and soul.

Onsen RyokanRoom with Open-air Bath
StimulationBactericidalSkin BeautyHeat RetentionRelaxation
pHMildly Alkaline8.5
0714
TEMP58.8
0℃50℃100℃
KEY MINERALS

A natural moisturizer also used in skincare lotions. Forms a thin veil on the skin to reduce moisture loss after bathing.

Softens dead skin cells for a silky bathing feel.

A trace component with gentle antibacterial and anti-inflammatory action.

Check Availability & Rates
PRIncludes affiliate links
Shotokuji Onsen Hatsuhana Simple Spring
Simple SpringInfo pending
Shotokuji Onsen Hatsuhana
はつはな
Kanagawa Yamanashi City· 正徳寺温泉 初花Hakone Onsen
Silky skin bath

Nestled in a tranquil Yamanashi City village, Shotokuji Onsen is a simple, therapeutic hot spring, cherished by locals for generations. Its highly alkaline waters, boasting a pH of 9.5, offer a thick, serum-like texture. As you slowly immerse yourself in the lukewarm bath, daily stiffness gently melts away, offering deep relaxation and potential pain relief. After your soak, anticipate surprisingly silky skin and a renewed sense of rejuvenation, perfect for those seeking an escape from the hustle to indulge in self-care.

Onsen RyokanPrivate Rental BathRoom with Open-air Bath
StimulationBactericidalSkin BeautyHeat RetentionRelaxation
pHStrongly Alkaline9.5
0714
TEMP32.2
0℃50℃100℃
KEY MINERALS

A natural moisturizer also used in skincare lotions. Forms a thin veil on the skin to reduce moisture loss after bathing.

60.1 mg/kg

Slightly alkaline, softening dead skin cells.

1.0 mg/kg

A trace antibacterial component that keeps skin clean.

Check Availability & Rates
PRIncludes affiliate links
Ohara Onsen Seryo Simple Spring
Simple SpringInfo pending
Ohara Onsen Seryo
大原温泉 芹生
Kyoto Sakyo Ward, Kyoto· 大原温泉
Skin-Beautifying Spring of Kyoto's Mountain Village

Opened in 2004, Ohara Onsen in Kyoto's Ohara district offers a colorless, transparent spring nestled in a mountain village near renowned temples like Sanzen-in and Jakkō-in. Its signature feature is a gentle, soft texture that delicately envelops the skin. Immersing yourself in this weakly alkaline, smooth water amidst the ancient capital's tranquility will slowly release tension from your stiff body and mind. This onsen is perfect for those seeking serene moments surrounded by abundant nature, far from the daily hustle.

Onsen RyokanRoom with Open-air Bath
StimulationBactericidalSkin BeautyHeat RetentionRelaxation
TEMP26
0℃50℃100℃
KEY MINERALS
8.2 mg/kg

Mild antibacterial action keeps the skin clean. Trace transdermal absorption supports tooth and bone health.

Softens dead skin cells for a silky bathing feel.

A natural moisturizer that leaves a hydrated feel on the skin.

Check Availability & Rates
PRIncludes affiliate links
Etabia Yufuinkinrinko Simple Spring
Simple SpringVerified
Etabia Yufuinkinrinko
ETAVIA湯布院金鱗湖
Oita Yufu· ETAVIA 湯布院金鱗湖
Kinrinko's Moisturizing Spring

This private spring gushes near Lake Kinrin in Yufuin, one of Japan's premier onsen destinations. The ETAVIA Yufuin Kinrinko Gensen is a simple hot spring, blessed by Mt. Yufu, known for being gentle and non-irritating to the skin. Within the history of Yufuin, long cherished as a health resort, this water has quietly soothed the minds and bodies of its visitors. Surrendering to the bath, you'll feel a smooth, lotion-like texture envelop your skin, allowing you to forget the hustle and bustle of daily life. It is a spring full of gentleness, recommended for those seeking a moment of peace.

Onsen RyokanPrivate Rental BathRoom with Open-air Bath
StimulationBactericidalSkin BeautyHeat RetentionRelaxation
pHMildly Alkaline8.4
0714
TEMP39.9
0℃50℃100℃
KEY MINERALS

A natural moisturizer also used in skincare lotions. Forms a thin veil on the skin to reduce moisture loss after bathing.

A trace component with gentle antibacterial and anti-inflammatory action.

Softens dead skin cells for a silky bathing feel.

Check Availability & Rates
PRIncludes affiliate links
Gora Onsen Simple Spring
Simple SpringVerified
Gora Onsen
強羅花壇
Kanagawa Gora, Ashigarashimo District· 宮城野 第26, 30, 117号 混合泉Hakone Onsen
The Soothing Spring of Gora

The Miyagino Combined Spring supplies the Gora Onsen area, one of Hakone's 17 famous springs. Since successful drilling around 1965, this source has supported the development of the Miyagino district as a health resort. By blending multiple sources, it maintains a stable volume and quality. The soft, weakly alkaline water is gentle on the skin, leaving it feeling smooth after bathing. It is recommended for those seeking a moment of peace to gently unwind both body and mind amidst Hakone's rich nature.

Onsen RyokanPrivate Rental BathRoom with Open-air Bath
StimulationBactericidalSkin BeautyHeat RetentionRelaxation
pHMildly Alkaline8.4
0714
TEMP45.5
0℃50℃100℃
KEY MINERALS

A natural moisturizer also used in skincare lotions. Forms a thin veil on the skin to reduce moisture loss after bathing.

A trace component with gentle antibacterial and anti-inflammatory action.

Softens dead skin cells for a silky bathing feel.

Check Availability & Rates
PRIncludes affiliate links
Misora Yufuin Simple Spring
Simple SpringInfo pending
Misora Yufuin
Misora Yufuin
Oita Yufu· MISORA YUFUIN
The Sky-Soaking Spring

The MISORA YUFUIN source emerges in Yufuin, a hot spring village at the foot of Mt. Yufu. As a gentle alkaline simple spring with low irritation, it is suitable for everyone, from babies to the elderly. Steeping in these waters feels like being enveloped in a rich lotion, its thick texture deeply moisturizing dry skin. In this land surrounded by abundant nature, you can forget the hustle and bustle of daily life and enjoy a tranquil time to release your mind and body.

Onsen RyokanPrivate Rental BathRoom with Open-air Bath
StimulationBactericidalSkin BeautyHeat RetentionRelaxation
pHMildly Alkaline8.5
0714
TEMP49.4
0℃50℃100℃
KEY MINERALS

A natural moisturizer also used in skincare lotions. Forms a thin veil on the skin to reduce moisture loss after bathing.

A trace component with gentle antibacterial and anti-inflammatory action.

Softens dead skin cells for a silky bathing feel.

Check Availability & Rates
PRIncludes affiliate links
Kusatsuonsen Sen Acidic Spring
Acidic SpringChloride SpringSulphate SpringInfo pending
Kusatsuonsen Sen
草津温泉 千
Gunma Kusatsu· 万代鉱Kusatsu Onsen
Scalding Strong Acidic Spring

The Mandaiko source, originating from traces of past mining development, is deeply intertwined with Kusatsu Onsen's unique yumomi culture and its long history of toji (therapeutic bathing). Its highly acidic waters, among Japan's most potent, deliver a distinctive tingling sensation, awakening both mind and body and offering a sense of rejuvenation. The high-temperature blessings penetrate deep into the core, leaving you with a surprisingly light and refreshed feeling after your bath. We invite those seeking a genuine toji experience, a true escape from daily life to restore their mind and body, to discover the profound power of this spring.

Onsen RyokanPrivate Rental BathTattoo OK (public bath)
StimulationBactericidalSkin BeautyHeat RetentionRelaxation
pHStrongly Acidic1.75
0714
TEMP94.6
0℃50℃100℃
KEY MINERALS
43.2 mg/kg

Strong astringent action that tightens skin. A key component of acidic springs, suited to oily or acne-prone skin.

25.1 mg/kg

Mild antibacterial action keeps the skin clean. Trace transdermal absorption supports tooth and bone health.

A natural moisturizer also used in skincare lotions. Forms a thin veil on the skin to reduce moisture loss after bathing.

Check Availability & Rates
PRIncludes affiliate links
Jozankei Onsen Suizantei Chloride Spring
Chloride SpringVerified
Jozankei Onsen Suizantei
定山渓第一寶亭留 翠山亭
Hokkaido Minami Ward, Sapporo· 第9号・10号の混合Jozankei Onsen
Private riverbed spring

The 'Mixed Source No. 9 and 10' naturally gushes from the riverbed of the Toyohira River, which flows through Jozankei Onsen. By blending multiple private sources, this unique and rich hot spring water is created. A gentle salt veil envelops the skin, delivering warmth deep into the body's core, and a pleasant restorative warmth lingers long after bathing. This blessing from the earth is especially recommended for those seeking to release daily fatigue and experience deep relaxation.

Onsen RyokanPrivate Rental BathRoom with Open-air Bath
StimulationBactericidalSkin BeautyHeat RetentionRelaxation
pHNeutral6.6
0714
TEMP76.4
0℃50℃100℃
KEY MINERALS

Undissociated boric acid with antibacterial action that keeps the skin surface clean.

A natural moisturizer also used in skincare lotions. Forms a thin veil on the skin to reduce moisture loss after bathing.

1372 mg/kg

Boosts after-bath warmth and warms the body from the core.

Check Availability & Rates
PRIncludes affiliate links
Sengokuharaonsen Senkyourou Acidic Spring
Acidic SpringSulphate SpringChloride SpringVerified
Sengokuharaonsen Senkyourou
仙郷楼
Kanagawa Hakone· 大涌谷温泉 蒸気造成混合泉
Owakudani's Earthly Pulse

Originating from the fumaroles of Owakudani, born from the eruption of Hakone volcano approximately 3,000 years ago, this artificially developed hot spring began to be supplied to Sengokuhara and Gora by Hakone Onsen Kyokyu Co., Ltd. in Showa 5 (1930). Its renowned milky white waters, blended with naturally gushing spring water, offer a pleasant sensation that tightens the skin and a powerful restorative warmth that penetrates deep into the body's core. After bathing, you'll feel surprisingly refreshed and light. It's a perfect companion when you seek to feel the Earth's energy and achieve deep relaxation and rejuvenation for your mind and body.

Onsen RyokanPrivate Rental BathRoom with Open-air Bath
StimulationBactericidalSkin BeautyHeat RetentionRelaxation
pHStrongly Acidic2.1
0714
TEMP60.6
0℃50℃100℃
KEY MINERALS
7.5 mg/kg

Tightens the skin and balances sebum.

A natural moisturizer also used in skincare lotions. Forms a thin veil on the skin to reduce moisture loss after bathing.

14.2 mg/kg

A trace component with gentle antibacterial and anti-inflammatory action.

Check Availability & Rates
PRIncludes affiliate links
Kusatsuonsen Bouun Acidic Spring
Acidic SpringChloride SpringSulphate SpringVerified
Kusatsuonsen Bouun
望雲
Gunma Kusatsu· 万代鉱1Kusatsu Onsen
Scalding Strong Acidic Spring

The Mandaiko source, originating from traces of past mining development, is deeply intertwined with Kusatsu Onsen's unique yumomi culture and its long history of toji (therapeutic bathing). Its highly acidic waters, among Japan's most potent, deliver a distinctive tingling sensation, awakening both mind and body and offering a sense of rejuvenation. The high-temperature blessings penetrate deep into the core, leaving you with a surprisingly light and refreshed feeling after your bath. We invite those seeking a genuine toji experience, a true escape from daily life to restore their mind and body, to discover the profound power of this spring.

Onsen Ryokan
StimulationBactericidalSkin BeautyHeat RetentionRelaxation
pHStrongly Acidic1.75
0714
TEMP94.6
0℃50℃100℃
KEY MINERALS
43.2 mg/kg

Strong astringent action that tightens skin. A key component of acidic springs, suited to oily or acne-prone skin.

25.1 mg/kg

Mild antibacterial action keeps the skin clean. Trace transdermal absorption supports tooth and bone health.

A natural moisturizer also used in skincare lotions. Forms a thin veil on the skin to reduce moisture loss after bathing.

Check Availability & Rates
PRIncludes affiliate links
Matsunoyamaonsen Hinanoyado Chitose Chloride Spring
Chloride SpringInfo pending
Matsunoyamaonsen Hinanoyado Chitose
松之山温泉 ひなの宿 ちとせ
Niigata Tokamachi· 鷹の湯 混合泉Matsunoyama Onsen
Salty hot water embracing warmth

Nestled in the scenic town of Matsuyama, this spring has long been cherished for relieving traveler fatigue, boasting robust eagle-like properties. The hypertonic chloride waters envelop the skin, smoothly expelling excess fluids and metabolic waste. The lightness after bathing and deep-penetrating warmth soothe the mind and body, freeing you from daily stress. Ideal for those with chronic stiffness or cold extremities, and perfect for weekend rejuvenation.

Onsen RyokanPrivate Rental BathRoom with Open-air Bath
StimulationBactericidalSkin BeautyHeat RetentionRelaxation
pHMildly Alkaline7.8
0714
TEMP88.7
0℃50℃100℃
KEY MINERALS

Undissociated boric acid with antibacterial action that keeps the skin surface clean.

9514 mg/kg

Salinity comparable to seawater. The salt film traps heat for outstanding warmth ("hot bath spring").

35.0 mg/kg

Gentle calming action; often found alongside chloride.

Check Availability & Rates
PRIncludes affiliate links
Gen Hakonegoura Chloride Spring
Chloride SpringVerified
Gen Hakonegoura
玄 箱根強羅
Kanagawa Hakone· 強羅温泉 (5号・6号井混合蒸気造成泉)Hakone Onsen
The Crafted Geothermal Spring

Gora Onsen is a unique "steam-created spring," established in the early Showa period, born from the reaction between volcanic steam from Owakudani and water from Sengokuhara. This blessing embodies the fusion of Hakone's natural power and human ingenuity. A gentle salt veil envelops the skin, delivering heat deep into the body's core, ensuring restorative warmth that lingers long after your bath. It's the perfect spring to soothe the fatigue of an active day and quietly replenish your vitality for tomorrow.

Onsen RyokanRoom with Open-air Bath
StimulationBactericidalSkin BeautyHeat RetentionRelaxation
pHNeutral7.3
0714
TEMP56.2
0℃50℃100℃
KEY MINERALS
30.4 mg/kg

A trace component with gentle antibacterial and anti-inflammatory action.

A natural moisturizer also used in skincare lotions. Forms a thin veil on the skin to reduce moisture loss after bathing.

559 mg/kg

Boosts after-bath warmth and warms the body from the core.

Check Availability & Rates
PRIncludes affiliate links
Kusatsuonsen Ichii Acidic Spring
Acidic SpringChloride SpringSulphate SpringSulphur SpringInfo pending
Kusatsuonsen Ichii
ホテル一井
Gunma Kusatsu· 万代鉱1Kusatsu Onsen
The Strongest Spring from the Mine

The Bandaiko source, which unexpectedly erupted from within the Bandai Sulfur Mine in 1970, now stands as Kusatsu's primary hot spring, boasting the largest output and supporting the town. Named with the wish for 'eternal prosperity' (万代), this powerful source was born in the mountains, far from the Yubatake (Kusatsu's central hot-water field). Its colorless, transparent waters deliver a stimulating tingle that awakens both mind and body, while its robust warmth permeates to the very core. This energetic spring is a perfect companion for those seeking liberation from daily routines and a crisp mental and physical rejuvenation.

Onsen Ryokan
StimulationBactericidalSkin BeautyHeat RetentionRelaxation
pHStrongly Acidic1.7
0714
TEMP94.6
0℃50℃100℃
KEY MINERALS
43.2 mg/kg

Strong astringent action that tightens skin. A key component of acidic springs, suited to oily or acne-prone skin.

25.1 mg/kg

Mild antibacterial action keeps the skin clean. Trace transdermal absorption supports tooth and bone health.

A natural moisturizer also used in skincare lotions. Forms a thin veil on the skin to reduce moisture loss after bathing.

Check Availability & Rates
PRIncludes affiliate links
Arima Onsen Chloride Spring
Chloride SpringFerruginous SpringInfo pending
Arima Onsen
SPA TERRACE 紫翠
Hyogo Kita Ward, Kobe· 天神泉源Arima Onsen
Blessings of the Earth, Golden Hot Spring

This is a representative 'Kinsen' (golden spring) of Arima Onsen, one of Japan's three ancient hot springs. Rich in iron and salt, its waters turn a distinctive reddish-brown upon contact with air. These dense minerals provide deep, lasting warmth, while a salt veil on the skin helps retain moisture, leaving it feeling smooth. Perfect for those struggling with chronic fatigue or poor circulation, or anyone seeking to refresh mind and body. It supports those wishing to regain vitality through the power of its potent waters.

Onsen RyokanPrivate Rental BathRoom with Open-air Bath
StimulationBactericidalSkin BeautyHeat RetentionRelaxation
pHNeutral6.6
0714
TEMP99.4
0℃50℃100℃
KEY MINERALS

Undissociated boric acid with antibacterial action that keeps the skin surface clean.

21130 mg/kg

Salinity comparable to seawater. The salt film traps heat for outstanding warmth ("hot bath spring").

10470 mg/kg

Salt forms a thin film on the skin, retaining heat after bathing. Helps with poor circulation.

Check Availability & Rates
PRIncludes affiliate links
Shijo Kawaramachi Onsen Soraniwa Terrace Kyoto Bettei Chloride Spring
Chloride SpringInfo pending
Shijo Kawaramachi Onsen Soraniwa Terrace Kyoto Bettei
四条河原町温泉 空庭テラス京都 別邸
Kyoto Shimogyo Ward, Kyoto· 四条河原町温泉
The Healing Salt Spring of the Ancient Capital

This precious hot spring emerges from deep underground in Shijo Kawaramachi, Kyoto's premier downtown district. Its hypertonic chloride spring water, with a richness akin to the blessings of the sea, gently envelops the skin, providing a restorative warmth that lingers long after bathing. It offers a deep relaxation, helping travelers forget the city's hustle and gently soothe bodies tired from exploration. This spring is highly recommended for active travelers seeking authentic healing conveniently located in the heart of the ancient capital.

Onsen RyokanRoom with Open-air Bath
StimulationBactericidalSkin BeautyHeat RetentionRelaxation
pHNeutral7.3
0714
TEMP32.1
0℃50℃100℃
KEY MINERALS
219 mg/kg

Extremely rare in Japan. Calcium-like astringent action that tightens the skin.

8867 mg/kg

Salinity comparable to seawater. The salt film traps heat for outstanding warmth ("hot bath spring").

667 mg/kg

Easily absorbed through the skin, helping to relax muscle stiffness during bathing — a transdermal nutrient unique to hot springs.

Check Availability & Rates
PRIncludes affiliate links
Matsunoyama Onsen Ponshu Hotel Suimu Chloride Spring
Chloride SpringInfo pending
Matsunoyama Onsen Ponshu Hotel Suimu
松之山温泉 Ponshu Hotel 睡夢
Niigata Tokamachi· 鷹の湯 混合泉
Salty hot water embracing warmth

Nestled in the scenic town of Matsuyama, this spring has long been cherished for relieving traveler fatigue, boasting robust eagle-like properties. The hypertonic chloride waters envelop the skin, smoothly expelling excess fluids and metabolic waste. The lightness after bathing and deep-penetrating warmth soothe the mind and body, freeing you from daily stress. Ideal for those with chronic stiffness or cold extremities, and perfect for weekend rejuvenation.

Onsen RyokanPrivate Rental Bath
StimulationBactericidalSkin BeautyHeat RetentionRelaxation
pHMildly Alkaline7.8
0714
TEMP88.7
0℃50℃100℃
KEY MINERALS

Undissociated boric acid with antibacterial action that keeps the skin surface clean.

9514 mg/kg

Salinity comparable to seawater. The salt film traps heat for outstanding warmth ("hot bath spring").

35.0 mg/kg

Gentle calming action; often found alongside chloride.

Check Availability & Rates
PRIncludes affiliate links
Beppuonsen Tenkuutoubou Seikaisou Carbonated Spring
Carbonated SpringChloride SpringInfo pending
Beppuonsen Tenkuutoubou Seikaisou
別府温泉 天空湯房 清海荘
Oita Beppu· 別府温泉 清海荘内湯Beppu Onsen
The hot spring that spins Beppu's silky skin

Gushing forth in Beppu, one of Japan's premier hot spring resorts, this water has long moisturized the skin of spa-goers. With a weakly alkaline pH of 8.2, the water gently envelops the skin like a beauty serum, softening it for a smooth feel. After bathing, you'll notice a supple texture and a warmth that radiates from your core. It's a healing spring, perfect for those seeking to reset mind and body away from daily life, or for anyone concerned about dry skin.

Onsen RyokanPrivate Rental BathRoom with Open-air Bath
StimulationBactericidalSkin BeautyHeat RetentionRelaxation
pHMildly Alkaline8.2
0714
TEMP52.3
0℃50℃100℃
KEY MINERALS

Softens dead skin cells for a silky bathing feel.

A natural moisturizer also used in skincare lotions. Forms a thin veil on the skin to reduce moisture loss after bathing.

A trace component with gentle antibacterial and anti-inflammatory action.

Check Availability & Rates
PRIncludes affiliate links
Kusatsu Onsen Hotel Sakurai Acidic Spring
Acidic SpringChloride SpringSulphate SpringSulphur SpringInfo pending
Kusatsu Onsen Hotel Sakurai
草津温泉 ホテル櫻井
Gunma 草津町· 万代鉱2Kusatsu Onsen
Scalding Strong Acidic Spring

The Mandaiko source, originating from traces of past mining development, is deeply intertwined with Kusatsu Onsen's unique yumomi culture and its long history of toji (therapeutic bathing). Its highly acidic waters, among Japan's most potent, deliver a distinctive tingling sensation, awakening both mind and body and offering a sense of rejuvenation. The high-temperature blessings penetrate deep into the core, leaving you with a surprisingly light and refreshed feeling after your bath. We invite those seeking a genuine toji experience, a true escape from daily life to restore their mind and body, to discover the profound power of this spring.

Onsen RyokanRoom with Open-air Bath
StimulationBactericidalSkin BeautyHeat RetentionRelaxation
pHStrongly Acidic1.75
0714
TEMP94.6
0℃50℃100℃
KEY MINERALS
43.2 mg/kg

Strong astringent action that tightens skin. A key component of acidic springs, suited to oily or acne-prone skin.

25.1 mg/kg

Mild antibacterial action keeps the skin clean. Trace transdermal absorption supports tooth and bone health.

A natural moisturizer also used in skincare lotions. Forms a thin veil on the skin to reduce moisture loss after bathing.

Check Availability & Rates
PRIncludes affiliate links
Motoyu Jinya Chloride Spring
Chloride SpringInfo pending
Motoyu Jinya
陣屋
Kanagawa Hadano· 鶴巻温泉 (秦野 第12号)
The Calcium-Rich Blessing of Tanzawa

Tsurumaki Onsen's non-volcanic waters, first utilized for bathing in 1889 after well water proved undrinkable, emerge from deep within the Tanzawa Mountains. This spring is a national rarity, exceptionally rich in calcium, gently enveloping the skin. Its restorative warmth penetrates the body's core, fostering deep relaxation and a lasting gentle glow post-bath. Following its history as 'Tokyo's inner parlor,' bustling with therapeutic bathers after the Odakyu Line opened in the early Showa era, it remains ideal for tranquil self-care away from urban clamor.

Onsen RyokanPrivate Rental BathRoom with Open-air Bath
StimulationBactericidalSkin BeautyHeat RetentionRelaxation
pHMildly Alkaline7.7
0714
TEMP20.6
0℃50℃100℃
KEY MINERALS

A natural moisturizer that leaves a hydrated feel on the skin.

539 mg/kg

Boosts after-bath warmth and warms the body from the core.

98.4 mg/kg

Softens dead skin cells for a silky bathing feel.

Check Availability & Rates
PRIncludes affiliate links
Bourou NOGUCHI Noboribetsu Sulphur Spring
Sulphur SpringChloride SpringSulphate SpringInfo pending
Bourou NOGUCHI Noboribetsu
望楼NOGUCHI登別
Hokkaido Noboribetsu City· 奥の湯Noboribetsu Onsen
Sophisticated Adult Retreat

A new 'Wa-modern' current emerged in Noboribetsu Onsen's history in 2006. This distinctive spring, with its faintly fragrant sulfur, evokes a sense of travel, while its chloride and sulfate composition gently infuses the skin with rich warmth. The heat gradually permeates the body's core, offering a pleasant restorative warmth that endures post-bath. It is perfectly suited for those desiring deep relaxation for mind and body in a sophisticated ambiance, far from daily clamor.

Onsen RyokanPrivate Rental BathRoom with Open-air Bath
StimulationBactericidalSkin BeautyHeat RetentionRelaxation
pHAcidic5.7
0714
TEMP46.1
0℃50℃100℃
KEY MINERALS
64.1 mg/kg

Undissociated boric acid with antibacterial action that keeps the skin surface clean.

The source of the distinctive sulfur smell. Dilates blood vessels via skin and inhalation to strongly boost circulation.

A natural moisturizer also used in skincare lotions. Forms a thin veil on the skin to reduce moisture loss after bathing.

Check Availability & Rates
PRIncludes affiliate links
Jozankei Onsen Hotel Shikanoyu Chloride Spring
Chloride SpringInfo pending
Jozankei Onsen Hotel Shikanoyu
定山渓温泉ホテル鹿の湯
Hokkaido Minami Ward, Sapporo· ホテル鹿の湯5号泉、33号泉の混合泉Jozankei Onsen
Historic Deer Healing Spring

This renowned hot spring of Jozankei Onsen traces its origins to a legend from 1897, where a wild deer was said to have healed its wounds on the banks of the Toyohira River. Rich in salt, the waters gently envelop the skin like a protective veil, delivering a soothing warmth that penetrates deep into the body's core. The pleasant, lingering warmth after bathing feels akin to being embraced by nature's blessings. This source offers a serene retreat for those seeking to unwind from daily fatigue while listening to the tranquil murmuring of the valley.

Onsen RyokanTattoo OK (public bath)
StimulationBactericidalSkin BeautyHeat RetentionRelaxation
pHNeutral6.4
0714
TEMP62.3
0℃50℃100℃
KEY MINERALS

Undissociated boric acid with antibacterial action that keeps the skin surface clean.

A natural moisturizer also used in skincare lotions. Forms a thin veil on the skin to reduce moisture loss after bathing.

1364 mg/kg

Boosts after-bath warmth and warms the body from the core.

Check Availability & Rates
PRIncludes affiliate links
Eienue Intakonchinentarubeppurizotoandosupa Chloride Spring
Chloride SpringVerified
Eienue Intakonchinentarubeppurizotoandosupa
ANAインターコンチネンタル別府リゾート&スパ
Oita Beppu· ANAインターコンチネンタル別府リゾート&スパ 浴場 壺湯Kannawa Onsen
The Soothing Spring of the Steam-Veiled Highlands

This ANA InterContinental Beppu Resort & Spa Tsuboyu Gensen source was developed using modern drilling techniques on a highland overlooking the historic, steam-filled streets of Kannawa, Beppu, a renowned therapeutic bathing area since the Kamakura period. A key feature is the dissolved salt, which gently envelops the skin to provide long-lasting warmth after bathing. It offers a moment of deep release for those seeking to connect with Beppu's magnificent nature.

Onsen RyokanPrivate Rental BathRoom with Open-air Bath
StimulationBactericidalSkin BeautyHeat RetentionRelaxation
pHNeutral6.5
0714
TEMP44.3
0℃50℃100℃
KEY MINERALS

A natural moisturizer also used in skincare lotions. Forms a thin veil on the skin to reduce moisture loss after bathing.

19.7 mg/kg

A trace component with gentle antibacterial and anti-inflammatory action.

609 mg/kg

Boosts after-bath warmth and warms the body from the core.

Check Availability & Rates
PRIncludes affiliate links
Yumoto Choza Carbonated Spring
Carbonated SpringChloride SpringInfo pending
Yumoto Choza
湯元 長座
Gifu Takayama City· 長座2号Fukuji Onsen
Okuhida's Smooth Skin Hot Spring

This blessed spring gushes from 250 meters beneath the natural splendor of Oku-Hida. The water, a blend of abundant bicarbonate ions and metasilicic acid, feels silky smooth on the skin and has long been cherished as a 'beauty spring.' After bathing, you'll notice your skin feeling moist and smooth, with a warmth that lingers from your core. This spring is a gentle companion for those seeking a moment of peace to unwind both mind and body from the hustle and bustle of daily life.

Onsen RyokanPrivate Rental Bath
StimulationBactericidalSkin BeautyHeat RetentionRelaxation
pHMildly Alkaline8
0714
TEMP63.1
0℃50℃100℃
KEY MINERALS

A natural moisturizer also used in skincare lotions. Forms a thin veil on the skin to reduce moisture loss after bathing.

Softens dead skin cells for a silky bathing feel.

A trace component with gentle antibacterial and anti-inflammatory action.

Check Availability & Rates
PRIncludes affiliate links
Rabisuta Kusatsuhiruzu Acidic Spring
Acidic SpringChloride SpringSulphate SpringSulphur SpringInfo pending
Rabisuta Kusatsuhiruzu
ラビスタ草津ヒルズ(共立リゾート)
Gunma Kusatsu· 万代鉱2
Scalding Strong Acidic Spring

The Mandaiko source, originating from traces of past mining development, is deeply intertwined with Kusatsu Onsen's unique yumomi culture and its long history of toji (therapeutic bathing). Its highly acidic waters, among Japan's most potent, deliver a distinctive tingling sensation, awakening both mind and body and offering a sense of rejuvenation. The high-temperature blessings penetrate deep into the core, leaving you with a surprisingly light and refreshed feeling after your bath. We invite those seeking a genuine toji experience, a true escape from daily life to restore their mind and body, to discover the profound power of this spring.

Onsen RyokanPrivate Rental BathRoom with Open-air Bath
StimulationBactericidalSkin BeautyHeat RetentionRelaxation
pHStrongly Acidic1.75
0714
TEMP94.6
0℃50℃100℃
KEY MINERALS
43.2 mg/kg

Strong astringent action that tightens skin. A key component of acidic springs, suited to oily or acne-prone skin.

25.1 mg/kg

Mild antibacterial action keeps the skin clean. Trace transdermal absorption supports tooth and bone health.

A natural moisturizer also used in skincare lotions. Forms a thin veil on the skin to reduce moisture loss after bathing.

Check Availability & Rates
PRIncludes affiliate links
Yuyado Tokinoniwa Sulphur Spring
Sulphur SpringAcidic SpringChloride SpringSulphate SpringVerified
Yuyado Tokinoniwa
湯宿 季の庭
Gunma Kusatsu· わたの湯1Kusatsu Onsen
The Cotton-Wrapped Spring

This rare, naturally gushing source emerges from beneath 'Gensenkaku,' nestled beside Kusatsu Onsen's iconic Yubatake (Kusatsu's central hot-water field). Despite its strong acidity, its waters offer a remarkably soft bathing sensation, akin to being enveloped in silk floss. The milky-white waters, renowned for having Kusatsu's finest 'yunohana' (hot spring minerals), gently embrace the skin, contributing to silky skin and providing a restorative warmth that lingers deep within the body. Known as a 'phantom spring' for its history of disappearing once during the Taisho era, it now offers a profound escape from daily life, inviting deep relaxation and rejuvenation.

Onsen RyokanPrivate Rental BathRoom with Open-air Bath
StimulationBactericidalSkin BeautyHeat RetentionRelaxation
pHStrongly Acidic2.1
0714
TEMP50.2
0℃50℃100℃
KEY MINERALS
44.3 mg/kg

Strong astringent action that tightens skin. A key component of acidic springs, suited to oily or acne-prone skin.

The source of the distinctive sulfur smell. Dilates blood vessels via skin and inhalation to strongly boost circulation.

9.6 mg/kg

Mild antibacterial action keeps the skin clean. Trace transdermal absorption supports tooth and bone health.

Check Availability & Rates
PRIncludes affiliate links
Yoshiikeryokan Chloride Spring
Chloride SpringInfo pending
Yoshiikeryokan
吉池旅館
Kanagawa Hakone· 湯本温泉 台帳番号 湯本 第12、72、84、89、99、112号混合泉Hakone Onsen
Hakone's Historic Blended Spring

Nestled in the Hakone Yumoto area, Yumoto Onsen (a blend of sources No. 12, 72, 84, 89, 99, and 112) is a luxurious fusion of six distinct springs. It symbolizes the abundant water volume of Yumoto, which historically thrived as one of the ancient Hakone Seven Hot Springs. The chloride spring water, enveloping the skin like a delicate veil, delivers restorative warmth deep into the body's core. The lingering, cozy sensation after bathing gently promotes deep relaxation, easing away daily fatigue. This spring is recommended for those seeking to deeply warm their body and mind and indulge in tranquil moments.

Onsen RyokanPrivate Rental BathRoom with Open-air Bath
StimulationBactericidalSkin BeautyHeat RetentionRelaxation
pHMildly Alkaline8.1
0714
TEMP63
0℃50℃100℃
KEY MINERALS
40.4 mg/kg

A trace component with gentle antibacterial and anti-inflammatory action.

1570 mg/kg

Boosts after-bath warmth and warms the body from the core.

A natural moisturizer that leaves a hydrated feel on the skin.

Check Availability & Rates
PRIncludes affiliate links
Tennenonsen Arisutonhoteruooita Carbonated Spring
Carbonated SpringInfo pending
Tennenonsen Arisutonhoteruooita
天然温泉 アリストンホテル大分
Oita Oita· アリストンホテル大分
Urban Amber Beauty Spring

Drawn from 700 meters beneath the center of Oita City, this private source is a true urban oasis. The Ariston Hotel Oita source boasts a pH of 8.6 and abundant bicarbonate ions, which gently exfoliate the skin, leaving it remarkably smooth. Its amber-hued waters invite deep relaxation, melting away the day's fatigue. It is perfect for those seeking to refresh and rejuvenate after a day of business or sightseeing.

Onsen Ryokan
StimulationBactericidalSkin BeautyHeat RetentionRelaxation
pHMildly Alkaline8.6
0714
TEMP52.1
0℃50℃100℃
KEY MINERALS

A natural moisturizer also used in skincare lotions. Forms a thin veil on the skin to reduce moisture loss after bathing.

Softens dead skin cells for a silky bathing feel.

3.4 mg/kg

A trace antibacterial component that keeps skin clean.

Check Availability & Rates
PRIncludes affiliate links
Beppuonsen Shiragiku Carbonated Spring
Carbonated SpringVerified
Beppuonsen Shiragiku
ホテル白菊
Oita Beppu· 楠湯 Beppu Onsen
Beppu's Silken Skin Elixir

This private source, Kusunoyu, gushes forth in the Beppu Onsen area, one of the eight springs of Beppu. While its name is associated with the historic "Kusunoki Onsen" public bath dating back to the Kamakura period, that bathhouse is now closed. This source features a balanced blend of skin-smoothing bicarbonate ions and core-warming chloride ions at a gentle pH of 8.2. As you steep in its waters, the slightly viscous texture envelops your skin, leaving it feeling moisturized and restoratively warm long after you emerge. It is perfect for those seeking to unwind both body and soul in a historic spa town.

Onsen RyokanRoom with Open-air Bath
StimulationBactericidalSkin BeautyHeat RetentionRelaxation
pHMildly Alkaline8.2
0714
TEMP58.2
0℃50℃100℃
KEY MINERALS

A natural moisturizer also used in skincare lotions. Forms a thin veil on the skin to reduce moisture loss after bathing.

Softens dead skin cells for a silky bathing feel.

A trace component with gentle antibacterial and anti-inflammatory action.

Check Availability & Rates
PRIncludes affiliate links
Hoshi Onsen Sulphate Spring
Sulphate SpringVerified
Hoshi Onsen
法師温泉長寿館
Gunma Minakami, Tone District· 法師温泉(旭の湯)Hoshi Onsen
Healing waters that mark the passage of eternal time

With a history stretching back to the Meiji era, Hoshi Onsen's "Asahi no Yu" source is a natural gift, bubbling up directly from the earth. The alkaline water, with a pH of 8.5, is gentle on the skin, while the perfect 41.5°C temperature slowly melts away physical and mental tension. The warming effects of the sulfate spring provide lasting warmth long after you leave the bath. This onsen embraces those seeking to forget daily clamor, reconnect with themselves in tranquility, and reset mind and body amidst history and nature.

Onsen RyokanDay-use Bath
StimulationBactericidalSkin BeautyHeat RetentionRelaxation
pHMildly Alkaline8.5
0714
TEMP41.5
0℃50℃100℃
KEY MINERALS

A trace component with gentle antibacterial and anti-inflammatory action.

A natural moisturizer that leaves a hydrated feel on the skin.

660 mg/kg

Soothes the skin and gently improves circulation.

Check Availability & Rates
PRIncludes affiliate links
Kurama Onsen Sulphur Spring
Sulphur SpringInfo pending
Kurama Onsen
くらま温泉
Kyoto Sakyo-ku, Kyoto· くらま温泉源泉 No.2
The Skin-Beautifying Spring of Kyoto's Mountains

Emerging from a tea field near the gate of Kurama-dera Temple in Kyoto's "inner parlor" during the late Meiji era, this rare and esteemed hot spring offers subtly sulfur-scented waters. Its gentle, weak alkaline touch smoothly envelops the skin, leaving it with a silky feel. After bathing, a refreshing lightness of body and mind promotes rejuvenation. It provides deep relaxation, helping to relieve pain from journeys exploring Kifune Shrine and Kurama-dera Temple, allowing visitors to deeply refresh amidst the beauty of nature through the four seasons.

Onsen RyokanTattoo OK (public bath)
StimulationBactericidalSkin BeautyHeat RetentionRelaxation
pHMildly Alkaline7.8
0714
TEMP14.4
0℃50℃100℃
KEY MINERALS

Softens dead skin cells for a silky bathing feel.

The aroma typical of sulfur springs, with circulatory and antibacterial effects.

A natural moisturizer that leaves a hydrated feel on the skin.

Check Availability & Rates
PRIncludes affiliate links

INTERACTIVE TOOLS

Tools available only on this site

Rank the best onsen for your symptom

Rank onsens whose spring types are indicated for Asthma and Pulmonary Emphysema (Mild) using analysis-sheet data, then jump straight to booking sites by area.

See ranked picks

Filter qualifying onsens on the interactive map

Plot only hot springs with spring types indicated for Asthma and Pulmonary Emphysema (Mild) on a nationwide map. Secondary filters available for distance and lodging category.

Open on map

Quick path from onsen pages to booking sites

From related onsen pages indicated for Asthma and Pulmonary Emphysema (Mild), jump to Agoda, Rakuten Travel, Booking.com, and other booking sites in a single click.

View related onsens

Visualize chemical basis with real numbers (pH, minerals, temperature)

Filter spring types indicated for Asthma and Pulmonary Emphysema (Mild) on /explore, then refine by pH, temperature, and natural-flow status. Make decisions on actual measurements (metasilicic mg/kg, pH, temperature) — not AI-generated approximations.

Refine by real data

* Booking links on each onsen page (Agoda, Rakuten Travel, Booking.com, etc.) contain affiliate links. Please check each booking site for the latest terms and pricing.

References

Explore Spring Types for This Condition

Related Articles

Post-Illness Recovery & Onsen | Thermal Therapy to Restore Vitality
SYMPTOMSMay 6, 2026· 1min read

Post-Illness Recovery & Onsen | Thermal Therapy to Restore Vitality

Post-illness recovery (convalescence) carries a general bathing indication across all 10 Japanese spring types. Thermal promotion of metabolism, elimination of fatigue metabolites, and autonomic normalisation together support recovery of vitality and immune function — the traditional Japanese "toji" therapeutic stay.

Hot Springs for Fatigue Recovery | All 10 Spring Types
SYMPTOMSMay 6, 2026· 1min read

Hot Springs for Fatigue Recovery | All 10 Spring Types

Fatigue recovery and health promotion are general bathing indications recognised across all 10 Japanese hot spring types, from simple springs to radioactive springs. Three physical mechanisms — thermal, hydrostatic, and buoyancy — work together to flush metabolic waste, reduce swelling, and deeply relax muscles regardless of mineral content.

Simple Springs (Tanjun Onsen): Gentle Waters for Everyone
SPRING TYPEMay 5, 2026· 1min read

Simple Springs (Tanjun Onsen): Gentle Waters for Everyone

Simple springs have dissolved components below 1,000 mg/kg and a source temperature of 25°C or above. Mild and non-irritating, they are safe for all ages. Alkaline simple springs (pH 8.5+) are famous for leaving skin silky smooth.