19-go-sen
Analysis UnverifiedGushing forth naturally amidst the lush nature of Noboribetsu, Source No. 19 shares its history with the region's volcanic activity. It uniquely combines the properties of a chloride and a bicarbonate spring, offering a complex character as if concentrating the earth's nutrients. As you soak, a veil of salt gently envelops your body, retaining warmth long after you leave the bath. Simultaneously, it helps to soften the skin, leaving it feeling smooth. This onsen is for the discerning individual seeking to heal daily fatigue and restore mind-body balance.
The bar length shows how abundant each component is compared to thresholds that make it "distinctive" (therapeutic spring standards, beauty spring criteria, etc.).
Undissociated boric acid with antibacterial action that keeps the skin surface clean.
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.
- Chloride (salt)713 mg/kg
- Feel
- Tastes salty; the warmth lasts after you get out.
- Said to
- Salt is said to form a film on the skin that keeps in heat and moisture. Bathing indications include cuts, poor circulation and dry skin.
- Note
- May sting cuts. Strong salty water can tire you—avoid long soaks.
- Bicarbonate (baking soda)383 mg/kg
- Feel
- Your skin feels smooth and silky.
- Said to
- Said to remove old skin cells and excess sebum. Bathing indications include cuts, poor circulation and dry skin.
- Note
- It can leave skin dry—moisturize after bathing.
- Metasilicic acid188 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 temperature56.4℃
- 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 the spring is hot at 56.4°C, acclimate your body by splashing your limbs with the water before entering. To maximize the warming effect of the chloride and the cleansing effect of the bicarbonate, it's best not to rinse off after bathing; simply pat your skin dry with a towel.
The abundant chloride ions (712.6 mg/kg) form a thin veil on the skin, which is traditionally associated with restorative warmth that prevents post-bath chills. Additionally, the bicarbonate ions (383.3 mg/kg) help to soften the skin, promoting a silky skin feel. This spring is recommended for those concerned with poor circulation or dry skin, and for anyone seeking deep relaxation from daily fatigue.
Avoid bathing during active phases of illness or when feeling unwell. Bathing after consuming alcohol is particularly dangerous and should be avoided.
※ See the analysis data below for detailed contraindications
ANALYSIS DATAView all analysis fields ▼
Source Info
- Source name
- 19-go-sen
- Spring type
- Sodium-Calcium-Magnesium Chloride and Bicarbonate Hot Spring
- Old spring type name
- 含食塩 重曹一塩化土類泉
- Source temperature
- 56.4℃
- pH
- 6.79
- Flow rate
- 60 L/min
- Flow type
- Self-flowing
- Osmotic pressure
- Hypotonic
Analysis Document
- Analysis date
- 2017-10-06
- Analyst organization
- 株式会社 環境プロジェクト
- Registration No.
- 北海道第9号
Cations
- Sodium ion Na⁺
- 255 mg/kg
- Potassium ion K⁺
- 26.8 mg/kg
- Ammonium ion NH₄⁺
- 0.70 mg/kg
- Magnesium ion Mg²⁺
- 89.2 mg/kg
- Calcium ion Ca²⁺
- 158 mg/kg
- Aluminum ion Al³⁺
- 0.00 mg/kg
- Manganese ion Mn²⁺
- 1.6 mg/kg
- Zinc ion Zn²⁺
- 0.00 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
- 532 mg/kg
Anions
- Fluoride ion F⁻
- 0.10 mg/kg
- Chloride ion Cl⁻
- 713 mg/kg
- Hydrogen sulfide ion HS⁻
- 0.00 mg/kg
- Thiosulfate ion S₂O₃²⁻
- 0.00 mg/kg
- Sulfate ion SO₄²⁻
- 32.4 mg/kg
- Bicarbonate ion HCO₃⁻
- 383 mg/kg
- Carbonate ion CO₃²⁻
- 0.00 mg/kg
- Hydrogen phosphate HPO₄²⁻
- 0.30 mg/kg
- Total anions
- 1129 mg/kg
Undissociated Components
- Metasilicic acid H₂SiO₃
- 188 mg/kg
- Metaboric acid HBO₂
- 52.0 mg/kg
- Total undissociated
- 240 mg/kg
Dissolved Gas
- Free carbon dioxide CO₂
- 136 mg/kg
- Free hydrogen sulfide H₂S
- 0.00 mg/kg
- Total dissolved gas
- 136 mg/kg
Totals
- Total dissolved substances
- 1900 mg/kg
- Component total
- 2036 mg/kg
- Evaporation residue
- 1810 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
- 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
- Drinking notes
- この温泉は飲用に利用しない。
