Hotel Shikanoyu 5-go-sen, 33-go-sen no Kongosen
Analysis VerifiedThis renowned hot spring of Jozankei Onsen traces its origins to a legend from 1897, where a wild deer was said to have healed its wounds on the banks of the Toyohira River. Rich in salt, the waters gently envelop the skin like a protective veil, delivering a soothing warmth that penetrates deep into the body's core. The pleasant, lingering warmth after bathing feels akin to being embraced by nature's blessings. This source offers a serene retreat for those seeking to unwind from daily fatigue while listening to the tranquil murmuring of the valley.
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.
- Chloride (salt)1364 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.
- Metasilicic acid124 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 temperature62.3℃
- 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.
Given the high source temperature of 62.3°C, it is essential to splash the water on your limbs before fully submerging to let your body adjust. Keep initial dips to around 3 to 10 minutes and stay hydrated.
Boasting 1,364 mg/kg of chloride ions, this high-quality sodium-chloride spring creates a soothing salt veil on the skin, retaining deep warmth long after bathing. It is an ideal remedy for those experiencing poor circulation or seeking profound relief from daily fatigue.
Avoid bathing during active illness or fever, extreme physical weakness, and severe cardiopulmonary or renal conditions.
※ See the analysis data below for detailed contraindications
ANALYSIS DATAView all analysis fields ▼
Source Info
- Source name
- Hotel Shikanoyu 5-go-sen, 33-go-sen no Kongosen
- Spring type
- ナトリウム-塩化物温泉
- Old spring type name
- 弱食塩泉
- Source temperature
- 62.3℃
- pH
- 6.4
- Osmotic pressure
- 低張性
Analysis Document
- Analysis date
- 2021-04-12
- Analyst organization
- 日本衛生株式会社
- Registration No.
- 北海道第11号
Cations
- Hydrogen ion H⁺
- 0.00 mg/kg
- Sodium ion Na⁺
- 808 mg/kg
- Potassium ion K⁺
- 149 mg/kg
- Ammonium ion NH₄⁺
- 1.0 mg/kg
- Magnesium ion Mg²⁺
- 16.5 mg/kg
- Calcium ion Ca²⁺
- 106 mg/kg
- Manganese ion Mn²⁺
- 0.80 mg/kg
- Iron(II) ion Fe²⁺
- 0.10 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
- 1082 mg/kg
Anions
- Fluoride ion F⁻
- 1.4 mg/kg
- Chloride ion Cl⁻
- 1364 mg/kg
- Hydrogen sulfide ion HS⁻
- 0.10 mg/kg
- Thiosulfate ion S₂O₃²⁻
- 0.20 mg/kg
- Sulfate ion SO₄²⁻
- 76.3 mg/kg
- Bicarbonate ion HCO₃⁻
- 290 mg/kg
- Carbonate ion CO₃²⁻
- 0.00 mg/kg
- Bromide ion Br⁻
- 3.3 mg/kg
- Hydrogen phosphate HPO₄²⁻
- 1.9 mg/kg
- Total anions
- 1737 mg/kg
Undissociated Components
- Arsenious acid HAsO₂
- 4.2 mg/kg
- Metasilicic acid H₂SiO₃
- 124 mg/kg
- Metaboric acid HBO₂
- 140 mg/kg
- Total undissociated
- 269 mg/kg
Dissolved Gas
- Free carbon dioxide CO₂
- 120 mg/kg
- Free hydrogen sulfide H₂S
- 0.60 mg/kg
- Total dissolved gas
- 120 mg/kg
Totals
- Total dissolved substances
- 3088 mg/kg
- Component total
- 3208 mg/kg
- Evaporation residue
- 2831 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
