Akari no Yado Tougetsu Gensen
Analysis VerifiedGushing in the Kannawa Onsen area, one of the eight springs of Beppu, Japan's top onsen destination, the Akari no Yado Tougetsu Gensen is a relatively new source, drilled and pump-lifted for a facility that opened in 2019. It offers modern relaxation while inheriting the traditions of Kannawa, long-famed as a therapeutic spa area. With a neutral pH of 6.8, close to human skin, the water is gentle and suitable for everyone. Immersing yourself in these waters helps you forget the hustle and bustle of daily life, deeply relaxing both mind and body.
The bar length shows how abundant each component is compared to thresholds that make it "distinctive" (therapeutic spring standards, beauty spring criteria, etc.).
A natural moisturizer also used in skincare lotions. Forms a thin veil on the skin to reduce moisture loss after bathing.
Transdermal absorption gently supports skin hydration and muscle relaxation.
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.
▸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.
The spring temperature is a very high 68.8°C, so facilities may use heat exchangers to cool the water without dilution. Acclimate your body slowly, starting with your feet, and avoid prolonged soaking. As the water is neutral and gentle, taking several short dips with breaks in between is recommended.
This simple hot spring, with a gentle, skin-friendly neutral pH of 6.8, is perfect for days when you seek deep relaxation. Notably, it contains 144.0 mg/kg of metasilicic acid, a known skin-beautifying component. This may help to leave your skin feeling moisturized and silky smooth after bathing. Enjoy it as a form of balneotherapy to soothe daily fatigue and promote rejuvenation.
The spring temperature is very high, so please be cautious of the water temperature when bathing. Those with high blood pressure or heart conditions should be especially careful to avoid sudden temperature changes.
※ See the analysis data below for detailed contraindications
ANALYSIS DATAView all analysis fields ▼
Source Info
- Source name
- Akari no Yado Tougetsu Gensen
- Spring type
- Simple Hot Spring
- Old spring type name
- 単純温泉
- Source temperature
- 68.8℃
- pH
- 6.9
- Flow type
- 動力揚湯
- Osmotic pressure
- 低張性
Analysis Document
- Analysis date
- 2024-11-12
- Analyst organization
- 公益社団法人大分県薬剤師会
- Registration No.
- 大分県第3号
Cations
- Sodium ion Na⁺
- 24.4 mg/kg
- Potassium ion K⁺
- 5.2 mg/kg
- Ammonium ion NH₄⁺
- 0.50 mg/kg
- Magnesium ion Mg²⁺
- 9.7 mg/kg
- Calcium ion Ca²⁺
- 28.4 mg/kg
- Lead ion Pb²⁺
- 0.00 mg/kg
- Strontium ion Sr²⁺
- 0.20 mg/kg
- Copper ion Cu²⁺
- 0.00 mg/kg
- Cadmium ion Cd²⁺
- 0.00 mg/kg
- Total cations
- 0.07 mg/kg
Anions
- Fluoride ion F⁻
- 0.00 mg/kg
- Chloride ion Cl⁻
- 14.1 mg/kg
- Thiosulfate ion S₂O₃²⁻
- 0.20 mg/kg
- Sulfate ion SO₄²⁻
- 97.2 mg/kg
- Bicarbonate ion HCO₃⁻
- 59.9 mg/kg
- Nitrate ion NO₃⁻
- 1.1 mg/kg
- Hydrogen phosphate HPO₄²⁻
- 0.20 mg/kg
- Total anions
- 0.17 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
- 144 mg/kg
- Metaboric acid HBO₂
- 0.00 mg/kg
- Total undissociated
- 0.14 mg/kg
Dissolved Gas
- Free carbon dioxide CO₂
- 8.8 mg/kg
- Total dissolved gas
- 0.01 mg/kg
Trace Components
- Radon Rn
- 0 Bq/kg
Totals
- Total dissolved substances
- 0.39 mg/kg
- Component total
- 0.39 mg/kg
- Evaporation residue
- 0.31 mg/kg
Usage
- Heating
- No
- Dilution
- No
- Recycle / Filter
- No
- Additives
- No
- Disinfection
- No
Indications & Contraindications
- Bathing indications
- Autonomic instability, Insomnia, Depression
- 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)
Drinking
- Drinkability
- Not drinkable
