Niseko Onsen Ikoinoyuyado Iroha
いこいの湯宿 いろは
Hokkaido Niseko, Abuta District
北海道 ニセコ町

Niseko Cho Gensen

Analysis Verified
ニセコ町源泉
Niseko's Resort Spring

Pump-lifted at 200 liters per minute from the base of the renowned Niseko Annupuri International Ski Resort, the Niseko Cho Gensen is a vital source developed by the Hokkaido Chuo Bus Group. It distributes its pristine, colorless waters primarily to local facilities like "Ikoi no Yuyado Iroha." Surrounded by lush natural forests, this source continuously soothes skiers and sightseers, offering a comforting embrace after a long day of outdoor activities in the snow.

AI Generated
SPRING TYPE
Bicarbonate Spring
aka "美人の湯"

Sodium bicarbonate cleanses the skin of old keratin and excess sebum, leaving skin soft and smooth. Expect beautiful skin after bathing.

See features & indications
Bathing indications
Cuts and grazesPeripheral circulatory failurePoor circulationXeroderma
Drinking indications
Gastroduodenal ulcersReflux esophagitisImpaired glucose tolerance (diabetes)Hyperuricemia (gout)

※ Only at facilities permitted to serve drinking water. 200–500 mL/day recommended.

Definition :Primary anion: bicarbonate ion.
Source: 環境省「あんしん・あんぜんな温泉利用のいろは」(監修:日本温泉気候物理医学会)Read full article
PH VALUE
7.2
Neutral
Acidic ← 07 Neutral14 → Alkaline
Upper bound of neutral (pH 7.5). Approaching mildly alkaline, the boundary where skin starts to feel smooth.
TEMPERATURE
58.9
Very Hot Spring
Very hot. Cannot be bathed in without significant dilution.
KEY MINERALS

The bar length shows how abundant each component is compared to thresholds that make it "distinctive" (therapeutic spring standards, beauty spring criteria, etc.).

Metasilicic acidSee detail
249 mg/kg

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

Bicarbonate ionSee detail
520 mg/kg

Softens dead skin cells for a silky bathing feel.

Metaboric acidSee detail
8.6 mg/kg

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

Magnesium ionSee detail
44.2 mg/kg

Transdermal absorption gently supports skin hydration and muscle relaxation.

Sodium ionSee detail
377 mg/kg

Gentle warming effect that helps you stay warm after bathing.

CHARACTER · COMPOSITION PROFILE
1234StimulationBactericidalSkin BeautyHeat RetentionRelaxation

Scores are calculated from mineral analysis data based on the Mineral Spring Analysis Guidelines (Ministry of Environment, Japan). They are unrelated to facility atmosphere or service quality.

USAGE
HeatedNo
DilutedYes
RecycledNo
FilteredNo
DisinfectedNo
AdditivesNo

The temperature, pH and component values shown here are based on the hot spring analysis (source). Actual values in the bath may differ depending on heating, dilution, recycling and filtration. Please check current usage status at the facility.

SENSORY TEST
Color
無色澄明
Smell
無臭
Taste
無味
EFFECTS
Spring-specific indications (bathing)
NeuralgiaMuscle painJoint painFrozen shoulderMotor paralysisJoint stiffnessBruisesSprainsFatigue recoveryChronic digestive diseasesHemorrhoidsPoor circulationConvalescenceHealth promotionCuts and grazesBurnsArteriosclerosisChronic skin diseases
Drinking indications
Chronic digestive diseasesConstipationChronic cholecystitisGallstonesObesityDiabetesGoutLiver disease
Contraindications
Acute illnesses (especially with fever)Active tuberculosisMalignant tumorsSevere heart diseaseRespiratory failureRenal failureBleeding disordersSevere anemiaOther progressively worsening diseasesPregnancy (especially early and late stages)
BATHING TIPS
AI Generated

With a high source temperature of 58.9°C, the water is adjusted for comfortable bathing depending on the facility. To fully enjoy the smooth texture of this bicarbonate spring, gently soak without over-scrubbing, and apply moisturizer promptly after your bath.

EFFECT STORY
AI Generated

Featuring a neutral pH of 7.2 and 248.7 mg/kg of skin-smoothing metasilicic acid, this spring acts as a natural beauty serum. The added sulfate and chloride components lock in heat, making it perfect for warming a chilled body after winter sports or relieving chronic joint pain and poor circulation.

CAUTIONS
AI Generated

Avoid bathing if you have acute illnesses, active tuberculosis, or severe heart conditions. When drinking, limit intake to 100-200ml per serving and avoid consumption between dinner and bedtime.

※ See the analysis data below for detailed contraindications

ANALYSIS DATAView all analysis fields ▼

Source Info

Source name
ニセコ町源泉
Spring type
ナトリウム-炭酸水素塩・硫酸塩・塩化物温泉
Old spring type name
含芒硝・食塩-重曹泉
Source temperature
58.9℃
pH
7.2
Flow rate
200 L/min
Flow type
動力揚湯
Osmotic pressure
低張性

Analysis Document

Analysis date
2012-09-19
Analyst organization
日本衛生株式会社
Registration No.
北海道第11号

Cations

Hydrogen ion H⁺
0.00 mg/kg
Lithium ion Li⁺
0.00 mg/kg
Sodium ion Na⁺
377 mg/kg
Potassium ion K⁺
39.8 mg/kg
Ammonium ion NH₄⁺
1.7 mg/kg
Magnesium ion Mg²⁺
44.2 mg/kg
Calcium ion Ca²⁺
55.5 mg/kg
Iron(II) ion Fe²⁺
0.50 mg/kg
Iron(III) ion Fe³⁺
0.00 mg/kg
Zinc ion Zn²⁺
0.01 mg/kg
Lead ion Pb²⁺
0.00 mg/kg
Strontium ion Sr²⁺
0.00 mg/kg
Barium ion Ba²⁺
0.00 mg/kg
Cadmium ion Cd²⁺
0.00 mg/kg
Total cations
0.52 mg/kg

Anions

Chloride ion Cl⁻
250 mg/kg
Hydroxide ion OH⁻
0.00 mg/kg
Hydrogen sulfide ion HS⁻
0.10 mg/kg
Thiosulfate ion S₂O₃²⁻
0.00 mg/kg
Sulfate ion SO₄²⁻
365 mg/kg
Bicarbonate ion HCO₃⁻
520 mg/kg
Carbonate ion CO₃²⁻
0.50 mg/kg
Bromide ion Br⁻
0.00 mg/kg
Iodide ion I⁻
0.00 mg/kg
Hydrogen sulfate HSO₄⁻
0.00 mg/kg
Hydrogen thiosulfate HS₂O₃⁻
0.00 mg/kg
Nitrite ion NO₂⁻
0.00 mg/kg
Nitrate ion NO₃⁻
0.00 mg/kg
Dihydrogen phosphate H₂PO₄⁻
0.00 mg/kg
Hydrogen phosphate HPO₄²⁻
0.00 mg/kg
Sulfide ion S²⁻
0.00 mg/kg
Hydrogen metasilicate HSiO₃⁻
0.00 mg/kg
Metasilicate ion SiO₃²⁻
0.00 mg/kg
Metaborate ion BO₂⁻
0.00 mg/kg
Total anions
1.1 mg/kg

Undissociated Components

Sulfuric acid H₂SO₄
0.00 mg/kg
Phosphoric acid H₃PO₄
0.00 mg/kg
Arsenious acid HAsO₂
0.00 mg/kg
Metasilicic acid H₂SiO₃
249 mg/kg
Metaboric acid HBO₂
8.6 mg/kg
Total undissociated
0.26 mg/kg

Dissolved Gas

Free carbon dioxide CO₂
63.9 mg/kg
Free hydrogen sulfide H₂S
0.00 mg/kg
Total dissolved gas
0.06 mg/kg

Totals

Total dissolved substances
1.9 mg/kg
Component total
2.0 mg/kg
Evaporation residue
1.5 mg/kg

Usage

Heating
No
Dilution
Yes
Recycle / Filter
No
Additives
No
Disinfection
No

Indications & Contraindications

Bathing indications
Neuralgia, Muscle pain, Joint pain, Frozen shoulder, Motor paralysis, Joint stiffness, Bruises, Sprains, Fatigue recovery, Chronic digestive diseases, Hemorrhoids, Poor circulation, Convalescence, Health promotion, Cuts and grazes, Burns, Arteriosclerosis, Chronic skin diseases
Drinking indications
Chronic digestive diseases, Constipation, Chronic cholecystitis, Gallstones, Obesity, Diabetes, Gout, Liver disease
Contraindications
Acute illnesses (especially with fever), Active tuberculosis, Malignant tumors, Severe heart disease, Respiratory failure, Renal failure, Bleeding disorders, Severe anemia, Other progressively worsening diseases, Pregnancy (especially early and late stages)

Drinking

Drinkability
Drinkable
Drinking notes
The general serving size for drinking is about 100-200ml, with an initial daily limit of 200-400ml. Please avoid drinking from after dinner until bedtime.
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The descriptions, catch phrases, and translations on this page are generated by AI (Claude). pH, temperature, and component values are OCR-extracted from the official analysis report. Learn more