Tokachigawa Mol Onsen Seijakukan Spring
Analysis UnverifiedTokachigawa Onsen's Moor Onsen is a globally rare plant-derived hot spring, formed as ancient plants accumulated over eons, filtering through lignite layers. Its amber-colored waters, akin to a beauty serum, gently envelop the skin, providing natural moisture and promoting silky skin. Embraced by the magnificent nature of the Tokachi Plain, this gentle warmth, infused with the earth's blessings, fosters deep relaxation and rejuvenation for both mind and body. It is ideal for travelers seeking to escape daily hustle and quietly reset their inner balance.
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.
A trace component with gentle antibacterial and anti-inflammatory action.
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 temperature of 26.2°C is heated by facilities for bathing comfort. To harness the delicate softness of simple alkaline water, begin with short 5–10 minute soaks initially, then gradually extend to 15–20 minutes as your body acclimates. Preserve moor-derived components on your skin by patting dry with a towel rather than rinsing thoroughly with shower water.
This gently alkaline spring (0.582g/kg total dissolved solids) features bicarbonate ions (305.7mg/kg) that smooth and soften skin, while organic compounds from the moor integrate seamlessly into skin texture. Medical applications recognize its efficacy for autonomic dysregulation, insomnia, and depressive states—making it ideal for those bearing mental-physical exhaustion or experiencing prolonged sleep disturbance. Iron(II) ions (3.6mg/kg) further support fatigue recovery and post-illness vitality restoration.
Avoid bathing during fever, malignant tumors' active progression, severe cardiopulmonary conditions, or digestive bleeding. Elderly and hypertensive guests should limit exposure to waters exceeding 42°C; those with compromised cardiac function should favor half-body immersion.
※ See the analysis data below for detailed contraindications
ANALYSIS DATAView all analysis fields ▼
Source Info
- Source name
- Tokachigawa Mol Onsen Seijakukan Spring
- Spring type
- Simple spring (Hypotonic weak alkaline low-temperature spring)
- Source temperature
- 26.2℃
- Osmotic pressure
- Hypotonic
Analysis Document
- Analysis date
- 2022-06-01
- Analyst organization
- 日本衛生株式会社
- Registration No.
- 北海道 第11号
Cations
- Sodium ion Na⁺
- 109 mg/kg
- Potassium ion K⁺
- 4.0 mg/kg
- Ammonium ion NH₄⁺
- 1.5 mg/kg
- Magnesium ion Mg²⁺
- 3.3 mg/kg
- Calcium ion Ca²⁺
- 5.2 mg/kg
- Aluminum ion Al³⁺
- 0.00 mg/kg
- Manganese ion Mn²⁺
- 0.20 mg/kg
- Iron(II) ion Fe²⁺
- 3.6 mg/kg
- Total cations
- 0.13 mg/kg
Anions
- Fluoride ion F⁻
- 0.30 mg/kg
- Chloride ion Cl⁻
- 10.1 mg/kg
- Thiosulfate ion S₂O₃²⁻
- 0.00 mg/kg
- Sulfate ion SO₄²⁻
- 0.00 mg/kg
- Bicarbonate ion HCO₃⁻
- 306 mg/kg
- Carbonate ion CO₃²⁻
- 0.90 mg/kg
- Hydrogen phosphate HPO₄²⁻
- 2.0 mg/kg
- Sulfide ion S²⁻
- 0.50 mg/kg
- Total anions
- 0.32 mg/kg
Undissociated Components
- Metasilicic acid H₂SiO₃
- 115 mg/kg
- Metaboric acid HBO₂
- 1.0 mg/kg
- Total undissociated
- 0.12 mg/kg
Dissolved Gas
- Free carbon dioxide CO₂
- 19.8 mg/kg
- Free hydrogen sulfide H₂S
- 0.10 mg/kg
- Total dissolved gas
- 0.02 mg/kg
Totals
- Component total
- 0.58 mg/kg
Usage
- Heating
- Yes（The water is heated to maintain a comfortable bathing temperature.）
- Dilution
- No
- Recycle / Filter
- Recycled / Filtered / Indoor facilities use flowing spring water without filtration (outdoor areas use filtered recirculation).
- Additives
- No
- Disinfection
- Yes（Chlorine-based disinfectant is used for sanitary management.）
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
- Drinking notes
- This hot spring water is not intended for drinking.