12-gōsen, 14-gōsen, 23-gōsen no Kongōsen
Analysis UnverifiedA representative mixed spring from Noboribetsu Onsen, one of Japan's leading hot spring resorts. It features a tightening sensation unique to its acidic nature (pH 2.54) and a faint scent of hydrogen sulfide. It gently cares for old skin cells, promising a smooth feel after bathing. This spring is perfect for those moments when you want to refresh your mind and body, gain new vitality, or simply change your mood.
The bar length shows how abundant each component is compared to thresholds that make it "distinctive" (therapeutic spring standards, beauty spring criteria, etc.).
Strong astringent action that tightens skin. A key component of acidic springs, suited to oily or acne-prone skin.
The source of the distinctive sulfur smell. Dilates blood vessels via skin and inhalation to strongly boost circulation.
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.
- Sulfur11.1 mg/kg
- Feel
- Smells like boiled eggs; the water may turn milky white or blue-green.
- Said to
- Said to be strongly antibacterial and to promote circulation. Bathing indications include atopic dermatitis and chronic eczema.
- Note
- With sensitive skin, rinse with fresh water after bathing. Remove silver jewelry—it tarnishes.
- Acidic (pH)pH 2.54
- Feel
- May tingle on the skin; tastes sour.
- Said to
- Said to be strongly antibacterial. Bathing indications include atopic dermatitis and plaque psoriasis.
- Note
- Can irritate sensitive skin—rinse with fresh water after bathing. Keep it out of your eyes.
- Metasilicic acid302 mg/kg
- Feel
- Your skin may feel smoother.
- Said to
- 50 mg/kg or more is said to mark a “skin-beautifying spring”; it is also used in skincare.
- Note
- The “skin-beautifying” label is a common rule of thumb, not a legal standard.
- Source temperature48.7℃
- Feel
- The source is 42°C or hotter; the bath may be on the hot side.
- Said to
- Heat is said to boost circulation and warm the body.
- Note
- Older people and those with high blood pressure or heart conditions should avoid baths of 42°C or more. Keep soaks short.
Effects are general descriptions based on the Ministry of the Environment’s indications by spring type, not a guarantee.
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.
As an acidic spring with a pH of 2.54, it may cause a tingling sensation on sensitive skin. Avoid long soaks; start with a 3-10 minute bath. It's recommended to lightly rinse off the spring components with fresh water after bathing and apply moisturizer.
With a pH of 2.54, this acidic spring is traditionally associated with supporting those with skin conditions like atopic dermatitis and chronic eczema. The abundant sulfur components are believed to condition the skin, promoting a **silky skin** feel. Furthermore, its unique properties may support **immune system stimulation**, contributing to daily health enhancement.
Due to its acidic nature, individuals with sensitive skin or mucous membranes, and elderly people with dry skin should bathe with caution. This water is not for drinking.
※ See the analysis data below for detailed contraindications
ANALYSIS DATAView all analysis fields ▼
Source Info
- Source name
- 12-gōsen, 14-gōsen, 23-gōsen no Kongōsen
- Spring type
- Acidic Sulfur-containing Simple Hot Spring (hydrogen sulfide type)
- Old spring type name
- 酸性硫化水素泉
- Source temperature
- 48.7℃
- pH
- 2.54
- Osmotic pressure
- Hypotonic
Analysis Document
- Analysis date
- 2018-04-13
- Valid until
- 2028-04-12
- Analyst organization
- 株式会社 環境プロジェクト
- Registration No.
- 北海道第9号
Cations
- Hydrogen ion H⁺
- 2.5 mg/kg
- Sodium ion Na⁺
- 31.9 mg/kg
- Potassium ion K⁺
- 6.9 mg/kg
- Ammonium ion NH₄⁺
- 1.0 mg/kg
- Magnesium ion Mg²⁺
- 8.9 mg/kg
- Calcium ion Ca²⁺
- 37.4 mg/kg
- Aluminum ion Al³⁺
- 31.3 mg/kg
- Manganese ion Mn²⁺
- 0.80 mg/kg
- Iron(II) ion Fe²⁺
- 13.0 mg/kg
- Iron(III) ion Fe³⁺
- 0.80 mg/kg
- Zinc ion Zn²⁺
- 0.04 mg/kg
- Lead ion Pb²⁺
- 0.00 mg/kg
- Copper ion Cu²⁺
- 0.00 mg/kg
- Cadmium ion Cd²⁺
- 0.00 mg/kg
- Total cations
- 135 mg/kg
Anions
- Fluoride ion F⁻
- 0.20 mg/kg
- Chloride ion Cl⁻
- 35.2 mg/kg
- Hydrogen sulfide ion HS⁻
- 0.00 mg/kg
- Thiosulfate ion S₂O₃²⁻
- 0.50 mg/kg
- Sulfate ion SO₄²⁻
- 455 mg/kg
- Bicarbonate ion HCO₃⁻
- 0.00 mg/kg
- Carbonate ion CO₃²⁻
- 0.00 mg/kg
- Hydrogen sulfate HSO₄⁻
- 38.5 mg/kg
- Dihydrogen phosphate H₂PO₄⁻
- 0.60 mg/kg
- Total anions
- 530 mg/kg
Undissociated Components
- Sulfuric acid H₂SO₄
- 0.20 mg/kg
- Metasilicic acid H₂SiO₃
- 302 mg/kg
- Metaboric acid HBO₂
- 3.5 mg/kg
- Total undissociated
- 305 mg/kg
Dissolved Gas
- Free carbon dioxide CO₂
- 132 mg/kg
- Free hydrogen sulfide H₂S
- 11.5 mg/kg
- Total dissolved gas
- 144 mg/kg
Totals
- Total dissolved substances
- 969 mg/kg
- Component total
- 1113 mg/kg
- Evaporation residue
- 943 mg/kg
Usage
- Heating
- No
- Dilution
- Yes（源泉温度が高いため、ほぼ全ての浴槽で加水して湯温調整）
- Recycle / Filter
- No
- Additives
- No
- Disinfection
- No
Indications & Contraindications
- Bathing indications
- Atopic dermatitis, Plaque psoriasis, Epidermal suppuration, Impaired glucose tolerance (diabetes), Chronic eczema, 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), Sensitive skin or mucous membranes, eye conditions (acidic springs), Severe chronic dermatitis (sulphur springs)
Drinking
- Drinkability
- Not drinkable
- Drinking notes
- この温泉は飲用に利用しない。
