Ginga no Yu, Ryusei no Yu and Hoshi no Yu (Blend)
Analysis UnverifiedGinga no Yu, Ryusei no Yu and Hoshi no Yu are three springs that gush naturally in the national forest toward Momijidani at Sounkyo Onsen, and the blend of these three sources is piped in together. Sounkyo is a spa set in a gorge of sheer Daisetsuzan cliffs, and this blend, though hotter than 70°C, is neutral and gentle, carrying a faint hydrogen sulfide scent and an eggy taste. Its slippery touch leaves the body light, a soothing sulfur spring for anyone who wants to linger amid the gorge's wild scenery.
The bar length shows how abundant each component is compared to thresholds that make it "distinctive" (therapeutic spring standards, beauty spring criteria, etc.).
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.
The aroma typical of sulfur springs, with circulatory and antibacterial effects.
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.
This neutral, gentle water suits long, easy soaks. Remove silver jewelry because of the sulfur, and note the spout can run hot since the source exceeds 70°C; check the temperature first and drink water afterward.
A neutral pH 7.1 sulfur spring traditionally associated with immune system stimulation, it also contains 122.6 mg/kg of metasilicic acid and 178.2 mg/kg of bicarbonate, which may support silky skin and a pleasant, smooth feel after bathing.
Take care near the hot spout, avoid overheating from long soaks and keep the bath ventilated because of the hydrogen sulfide scent.
※ See the analysis data below for detailed contraindications
ANALYSIS DATAView all analysis fields ▼
Source Info
- Source name
- Ginga no Yu, Ryusei no Yu and Hoshi no Yu (Blend)
- Spring type
- Simple Sulfur Hot Spring
- Source temperature
- 72.3℃
- pH
- 7.1
- Flow rate
- 79 L/min
- Flow type
- 自然湧出
- Osmotic pressure
- 低張性
Analysis Document
- Analysis date
- 2018-09-20
- Analyst organization
- 株式会社ホクカン 環境化学分析センター
- Registration No.
- 北海道第3号
Cations
- Sodium ion Na⁺
- 127 mg/kg
- Potassium ion K⁺
- 10.9 mg/kg
- Ammonium ion NH₄⁺
- 4.8 mg/kg
- Magnesium ion Mg²⁺
- 1.9 mg/kg
- Calcium ion Ca²⁺
- 12.8 mg/kg
- Aluminum ion Al³⁺
- 0.01 mg/kg
- Manganese ion Mn²⁺
- 0.30 mg/kg
- Iron(II) ion Fe²⁺
- 0.20 mg/kg
- Zinc ion Zn²⁺
- 0.10 mg/kg
- Lead ion Pb²⁺
- 0.01 mg/kg
- Copper ion Cu²⁺
- not detected
- Cadmium ion Cd²⁺
- not detected
- Total cations
- 0.16 mg/kg
Anions
- Fluoride ion F⁻
- 1.7 mg/kg
- Chloride ion Cl⁻
- 55.2 mg/kg
- Hydrogen sulfide ion HS⁻
- 2.1 mg/kg
- Thiosulfate ion S₂O₃²⁻
- 0.70 mg/kg
- Sulfate ion SO₄²⁻
- 93.3 mg/kg
- Bicarbonate ion HCO₃⁻
- 178 mg/kg
- Carbonate ion CO₃²⁻
- 0.20 mg/kg
- Hydrogen phosphate HPO₄²⁻
- 0.10 mg/kg
- Total anions
- 0.33 mg/kg
Undissociated Components
- Arsenious acid HAsO₂
- 0.70 mg/kg
- Metasilicic acid H₂SiO₃
- 123 mg/kg
- Metaboric acid HBO₂
- 17.3 mg/kg
- Total undissociated
- 0.14 mg/kg
Dissolved Gas
- Free carbon dioxide CO₂
- 42.8 mg/kg
- Free hydrogen sulfide H₂S
- 1.9 mg/kg
- Total dissolved gas
- 0.04 mg/kg
Totals
- Total dissolved substances
- 0.63 mg/kg
- Component total
- 0.68 mg/kg
- Evaporation residue
- 0.52 mg/kg
Usage
- Heating
- No
- Dilution
- No
- Recycle / Filter
- No
- Additives
- No
- Disinfection
- No
Indications & Contraindications
- Bathing indications
- Atopic dermatitis, Plaque psoriasis, Chronic eczema, Epidermal suppuration
- General indications
- High blood pressure (mild), Rheumatoid arthritis, Autonomic instability, Insomnia, Depression, 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), Severe chronic dermatitis (sulphur springs)
Drinking
- Drinkability
- Not drinkable
