Tsuta Onsen Shinyu
Analysis UnverifiedTsuta Onsen in southern Hakkoda has hosted bathers since the Heian period, when simple bathhouses already stood here. The Tsuta Onsen Shinyu source bubbles up directly beneath the baths, seeping through gaps in beechwood floorboards without ever touching the air. Its blend of sulfate and bicarbonate soothes the skin and lingers long after bathing, suiting travelers who pair a brief, hot soak with autumn walks around nearby Tsuta Pond.
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.
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 source emerges at 45.4°C straight from the bath floor, so heat varies by spot. Pour water over yourself first, soak in short three-to-five-minute rounds, and rest between dips.
With 328.9 mg/kg of sulfate, this spring has long been traditionally associated with balneotherapy that may help relieve pain from neuralgia and stiff joints. Its 178.1 mg/kg of metasilicic acid may also support silky skin, making it a fine choice after a day hiking the Hakkoda trails.
At 45.4°C the water runs hot, so avoid long soaks and watch for dizziness. People with general contraindications for hot-spring bathing should refrain.
※ See the analysis data below for detailed contraindications
ANALYSIS DATAView all analysis fields ▼
Source Info
- Source name
- Tsuta Onsen Shinyu
- Spring type
- Sodium-Calcium Sulfate, Bicarbonate and Chloride Spring
- Source temperature
- 45.4℃
- Osmotic pressure
- 低張性
Analysis Document
- Analysis date
- 2014-04-16
- Analyst organization
- 一般社団法人 青森県薬剤師会衛生検査センター
- Registration No.
- 青森県第2号
Cations
- Lithium ion Li⁺
- 0.00 mg/kg
- Sodium ion Na⁺
- 249 mg/kg
- Potassium ion K⁺
- 16.0 mg/kg
- Ammonium ion NH₄⁺
- 0.00 mg/kg
- Magnesium ion Mg²⁺
- 12.4 mg/kg
- Calcium ion Ca²⁺
- 62.4 mg/kg
- Aluminum ion Al³⁺
- 0.00 mg/kg
- Manganese ion Mn²⁺
- 0.40 mg/kg
- Iron(II) ion Fe²⁺
- 0.00 mg/kg
- Zinc ion Zn²⁺
- < 0.005 mg/kg
- Lead ion Pb²⁺
- < 0.01 mg/kg
- Copper ion Cu²⁺
- < 0.01 mg/kg
- Cadmium ion Cd²⁺
- < 0.005 mg/kg
- Total cations
- 0.34 mg/kg
Anions
- Fluoride ion F⁻
- 0.60 mg/kg
- Chloride ion Cl⁻
- 133 mg/kg
- Sulfate ion SO₄²⁻
- 329 mg/kg
- Bicarbonate ion HCO₃⁻
- 246 mg/kg
- Carbonate ion CO₃²⁻
- 0.00 mg/kg
- Bromide ion Br⁻
- 0.20 mg/kg
- Iodide ion I⁻
- 0.20 mg/kg
- Hydrogen phosphate HPO₄²⁻
- 0.70 mg/kg
- Total anions
- 0.71 mg/kg
Undissociated Components
- Arsenious acid HAsO₂
- 0.30 mg/kg
- Metasilicic acid H₂SiO₃
- 178 mg/kg
- Metaboric acid HBO₂
- 24.7 mg/kg
- Total undissociated
- 0.20 mg/kg
Dissolved Gas
- Free carbon dioxide CO₂
- 54.2 mg/kg
- Total dissolved gas
- 0.05 mg/kg
Totals
- Total dissolved substances
- 1.3 mg/kg
- Component total
- 1.3 mg/kg
Usage
- Usage status
- Unknown
Indications & Contraindications
- Bathing indications
- Cuts and grazes, Peripheral circulatory failure, Poor circulation, Depression, Xeroderma
- General indications
- High blood pressure (mild), Rheumatoid arthritis, Autonomic instability, Insomnia, 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
