Takanoyu Kongosen
Analysis UnverifiedNestled in the scenic town of Matsuyama, this spring has long been cherished for relieving traveler fatigue, boasting robust eagle-like properties. The hypertonic chloride waters envelop the skin, smoothly expelling excess fluids and metabolic waste. The lightness after bathing and deep-penetrating warmth soothe the mind and body, freeing you from daily stress. Ideal for those with chronic stiffness or cold extremities, and perfect for weekend rejuvenation.
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.
Salinity comparable to seawater. The salt film traps heat for outstanding warmth ("hot bath spring").
Astringent action that tightens the skin and soothes flushing 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.
Due to the high temperature, start with half-body baths or lukewarm rinses to acclimate your body before enjoying a full immersion. The salt content forms a thin protective layer on the skin, so avoid rinsing off with water after bathing; simply pat dry with a towel to maximize the restorative warmth.
Harmonized by a pH of 7.8, 169.5 mg/kg of metasilicic acid, and 9514 mg/kg of chloride ions, this spring may support the skin's barrier function, soothing dryness and irritation. Its hypertonic nature promotes osmotic action, aiding the expulsion of puffiness and fatigue-related compounds, which traditionally associates with relieving muscle pain and fostering deep relaxation. It is particularly suitable for those looking to soften a tense body worn down by daily routines.
Due to the high temperature, older adults or those with heart/blood pressure concerns are advised to use lower temperatures (below 42°C). Ensure proper hydration before and after bathing, rise slowly to prevent dizziness, and enjoy the bath within comfortable time limits.
※ See the analysis data below for detailed contraindications
ANALYSIS DATAView all analysis fields ▼
Source Info
- Source name
- Takanoyu Kongosen
- Spring type
- Sodium-Calcium Chloride Spring
- Source temperature
- 88.7℃
- pH
- 7.8
- Flow rate
- 882 L/min
- Osmotic pressure
- Hypertonic
Analysis Document
- Analysis date
- 2018-10-15
- Analyst organization
- 一般財団法人新潟県環境分析センター
- Registration No.
- 新潟県 (登) 環企第4号
Cations
- Hydrogen ion H⁺
- 0.09 mg/kg
- Lithium ion Li⁺
- 1.8 mg/kg
- Sodium ion Na⁺
- 3781 mg/kg
- Potassium ion K⁺
- 166 mg/kg
- Ammonium ion NH₄⁺
- 64.0 mg/kg
- Magnesium ion Mg²⁺
- 0.60 mg/kg
- Calcium ion Ca²⁺
- 2043 mg/kg
- Aluminum ion Al³⁺
- 0.00 mg/kg
- Manganese ion Mn²⁺
- 0.00 mg/kg
- Iron(II) ion Fe²⁺
- 0.00 mg/kg
- Iron(III) ion Fe³⁺
- 0.00 mg/kg
- Zinc ion Zn²⁺
- 0.00 mg/kg
- Lead ion Pb²⁺
- 0.00 mg/kg
- Strontium ion Sr²⁺
- 27.9 mg/kg
- Barium ion Ba²⁺
- 1.4 mg/kg
- Copper ion Cu²⁺
- 0.00 mg/kg
- Cadmium ion Cd²⁺
- 0.00 mg/kg
- Total cations
- 6.1 mg/kg
Anions
- Fluoride ion F⁻
- 2.8 mg/kg
- Chloride ion Cl⁻
- 9514 mg/kg
- Hydroxide ion OH⁻
- 0.00 mg/kg
- Hydrogen sulfide ion HS⁻
- 0.00 mg/kg
- Thiosulfate ion S₂O₃²⁻
- 0.40 mg/kg
- Sulfate ion SO₄²⁻
- 90.7 mg/kg
- Bicarbonate ion HCO₃⁻
- 64.1 mg/kg
- Carbonate ion CO₃²⁻
- 0.00 mg/kg
- Bromide ion Br⁻
- 35.0 mg/kg
- Iodide ion I⁻
- 5.8 mg/kg
- Hydrogen sulfate HSO₄⁻
- 0.00 mg/kg
- Hydrogen thiosulfate HS₂O₃⁻
- 0.00 mg/kg
- Nitrite ion NO₂⁻
- 0.00 mg/kg
- Nitrate ion NO₃⁻
- 0.00 mg/kg
- Dihydrogen phosphate H₂PO₄⁻
- 0.00 mg/kg
- Hydrogen phosphate HPO₄²⁻
- 0.00 mg/kg
- Phosphate ion PO₄³⁻
- 0.00 mg/kg
- Arsenite ion AsO₂⁻
- 0.00 mg/kg
- Sulfide ion S²⁻
- 0.00 mg/kg
- Hydrogen metasilicate HSiO₃⁻
- 0.00 mg/kg
- Metasilicate ion SiO₃²⁻
- 0.00 mg/kg
- Metaborate ion BO₂⁻
- 0.00 mg/kg
- Total anions
- 9.7 mg/kg
Undissociated Components
- Sulfuric acid H₂SO₄
- 0.00 mg/kg
- Phosphoric acid H₃PO₄
- 0.00 mg/kg
- Arsenious acid HAsO₂
- 0.00 mg/kg
- Metasilicic acid H₂SiO₃
- 170 mg/kg
- Metaboric acid HBO₂
- 287 mg/kg
- Total undissociated
- 0.46 mg/kg
Dissolved Gas
- Free carbon dioxide CO₂
- 1.7 mg/kg
- Free hydrogen sulfide H₂S
- 0.00 mg/kg
- Total dissolved gas
- 0.00 mg/kg
Totals
- Total dissolved substances
- 16.3 mg/kg
- Component total
- 16.3 mg/kg
- Evaporation residue
- 19.4 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
