Villa Reine

Analysis Verified
The Soothing Spring of Kamegawa

The Villa Reine source is a private hot spring drilled for the "Villa Reine" accommodation, located in the Kamegawa Onsen area, one of the eight famous springs of Beppu. This region has long been known as a therapeutic spa area with a charming, tranquil seaside atmosphere. With a weakly alkaline pH of 7.7, this gentle spring is ideal for long, relaxing soaks. Its abundant metasilicic acid helps to moisturize the skin, leaving it feeling silky smooth after bathing. It is the perfect spring for those wishing to deeply heal mind and body away from the hustle and bustle of daily life.

AI Generated
SPRING TYPE
Simple Spring

Spring water that is gentle on the skin with a very low likelihood of irritation. Safe for bathing infants and those with sensitive skin.

See features & indications
Bathing indications
Autonomic instabilityInsomniaDepression
Definition :Total dissolved solids (excluding gases) below 1,000 mg/kg; water temperature 25°C or above.
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
7.7
Mildly Alkaline
Acidic ← 07 Neutral14 → Alkaline
Mildly alkaline (pH 7.5-8.5). Cleansing effects begin to appear, the entrance to "beauty spring" with smooth skin feel.
TEMPERATURE
46.3
Hot Spring
Quite hot. Often diluted with water for a comfortable bathing temperature.
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
221 mg/kg

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

Metaboric acidSee detail
4.1 mg/kg

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

Bicarbonate ionSee detail
123 mg/kg

Softens dead skin cells for a silky bathing feel.

Chloride ionSee detail
127 mg/kg

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

Sodium ionSee detail
122 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
Usage status is unknownInformation from facility postings or official sites has not been confirmed. Please check with staff on site.
Note

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
殆ど無味
EFFECTS
Spring-specific indications (bathing)
Autonomic instabilityInsomniaDepressionChronic pain or stiffness in muscles and joints (rheumatoid arthritisosteoarthritislow back painneuralgiafrozen shoulderchronic phase of bruises and sprains)muscle stiffness due to motor paralysispoor circulationgastrointestinal dysfunction (stomach heavinessintestinal gas)mild high blood pressureimpaired glucose tolerance (diabetes)mild hypercholesterolemiamild asthma or emphysemahemorrhoid painautonomic instabilitystress-related symptoms (insomniadepression)post-illness recoveryfatigue recoveryhealth promotion
General indications (bathing)
High blood pressure (mild)Rheumatoid arthritisChronic pain or stiffness in muscles and jointsMuscle stiffness due to motor paralysisGastrointestinal dysfunction
Contraindications
Acute illness (especially with fever)Active tuberculosisMalignant tumorsSevere heart diseaseRespiratory failureRenal failureBleeding disordersSevere anemiaAny actively progressing illnessPregnancy (especially early and late stages)Active stages of illness (especially with fever)active tuberculosisadvanced malignant tumors or severe anemia with significant physical declinesevere heart or lung disease causing shortness of breath with slight movementsevere kidney disease with edemagastrointestinal bleedingvisible bleedingacute exacerbation of chronic illness
BATHING TIPS
AI Generated

At 46.3°C, the water is quite hot, so acclimate your body with "kakeyu" (warming water) before entering. The gentle, weakly alkaline pH of 7.7 makes it ideal for a long, relaxing soak. Rich in metasilicic acid, it's best not to rinse off completely to let the beneficial components nourish your skin.

EFFECT STORY
AI Generated

The weakly alkaline water with a pH of 7.7 gently exfoliates the skin. Containing a high 221 mg/kg of metasilicic acid, a natural moisturizer, it promotes "silky skin". The restorative warmth from its 46.3°C temperature boosts circulation, supporting "rejuvenation" and easing daily fatigue. Consider it a form of balneotherapy for refreshing both mind and body.

CAUTIONS
AI Generated

The water temperature is high at 46.3°C. To avoid overheating, limit long soaks and be mindful of dizziness. Remember to stay hydrated before and after your bath.

※ See the analysis data below for detailed contraindications

ANALYSIS DATAView all analysis fields ▼

Source Info

Source name
Villa Reine
Spring type
Simple Hot Spring
Old spring type name
単純温泉
Source temperature
46.3℃
pH
7.7
Flow type
動力揚湯
Osmotic pressure
低張性

Analysis Document

Analysis date
2025-01-30
Analyst organization
公益社団法人大分県薬剤師会
Registration No.
大薬検第7R-25010014号

Cations

Lithium ion Li⁺
0.60 mg/kg
Sodium ion Na⁺
122 mg/kg
Potassium ion K⁺
20.1 mg/kg
Magnesium ion Mg²⁺
8.0 mg/kg
Calcium ion Ca²⁺
20.4 mg/kg
Strontium ion Sr²⁺
0.10 mg/kg
Total cations
0.17 mg/kg

Anions

Fluoride ion F⁻
0.20 mg/kg
Chloride ion Cl⁻
127 mg/kg
Sulfate ion SO₄²⁻
102 mg/kg
Bicarbonate ion HCO₃⁻
123 mg/kg
Bromide ion Br⁻
0.40 mg/kg
Nitrate ion NO₃⁻
9.2 mg/kg
Hydrogen phosphate HPO₄²⁻
0.20 mg/kg
Total anions
0.36 mg/kg

Undissociated Components

Sulfuric acid H₂SO₄
0.00 mg/kg
Phosphoric acid H₃PO₄
0.00 mg/kg
Arsenious acid HAsO₂
0.30 mg/kg
Metasilicic acid H₂SiO₃
221 mg/kg
Metaboric acid HBO₂
4.1 mg/kg
Total undissociated
0.23 mg/kg

Dissolved Gas

Free carbon dioxide CO₂
4.8 mg/kg
Total dissolved gas
0.00 mg/kg

Totals

Total dissolved substances
0.76 mg/kg
Component total
0.76 mg/kg
Evaporation residue
0.61 mg/kg

Usage

Usage status
Unknown

Indications & Contraindications

Bathing indications
Autonomic instability, Insomnia, Depression, Chronic pain or stiffness in muscles and joints (rheumatoid arthritis, osteoarthritis, low back pain, neuralgia, frozen shoulder, chronic phase of bruises and sprains), muscle stiffness due to motor paralysis, poor circulation, gastrointestinal dysfunction (stomach heaviness, intestinal gas), mild high blood pressure, impaired glucose tolerance (diabetes), mild hypercholesterolemia, mild asthma or emphysema, hemorrhoid pain, autonomic instability, stress-related symptoms (insomnia, depression), post-illness recovery, fatigue recovery, health promotion
General indications
High blood pressure (mild), Rheumatoid arthritis, Chronic pain or stiffness in muscles and joints, Muscle stiffness due to motor paralysis, Gastrointestinal dysfunction
Contraindications
Acute illness (especially with fever), Active tuberculosis, Malignant tumors, Severe heart disease, Respiratory failure, Renal failure, Bleeding disorders, Severe anemia, Any actively progressing illness, Pregnancy (especially early and late stages), Active stages of illness (especially with fever), active tuberculosis, advanced malignant tumors or severe anemia with significant physical decline, severe heart or lung disease causing shortness of breath with slight movement, severe kidney disease with edema, gastrointestinal bleeding, visible bleeding, acute exacerbation of chronic illness

Drinking

Drinkability
Not drinkable
FACILITY INFO
AI draft (unverified)
Private bath (Kashikiri)
Available
Room with private open-air bath
Available
About tattoos and onsen
Travelers with tattoos can still bathe comfortably in a private bath (Kashikiri) or a room with a private open-air bath.
Transit
Approx. 6 minutes walk from Kamegawa Station.
Parking
Available (for 1 car)
Facilities
KitchenMicrowaveWi-FiTVAir conditioningRefrigeratorCooking utensilsTableware
House rules
Please refrain from using the open-air bath after 10 PM. No pets allowed. No smoking. No events or parties. Check-in/check-out is non-contact self-check-in. Personal information for all guests is required.
This information may change without notice. Please contact the facility directly for accurate details.
Last updated: 6/6/2026
How Long to Stay (Toji)
Start with 2 nights / 3 days

Japan’s Ministry of the Environment notes that even a short stay refreshes you. For a full therapeutic cure, around 2–3 weeks is the guideline.

More on toji length
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