Naradanosato Onsen
Analysis UnverifiedNaradanosato Onsen bubbles up in Narada, a secluded village at the foot of the Southern Alps. Legend holds that Empress Koken, who lived here for eight years in the Nara period, recovered her health by bathing, and that the sacred spring where she washed her robes became this source. The Naradanosato source soothes with a gentle, silky alkaline touch that lingers softly on the skin.
The bar length shows how abundant each component is compared to thresholds that make it "distinctive" (therapeutic spring standards, beauty spring criteria, etc.).
Mild antibacterial action keeps the skin clean. Trace transdermal absorption supports tooth and bone health.
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.
With the source at around 41°C, the baths tend to be mild, so a long, unhurried soak suits this water. Alkaline water can strip skin oils, so moisturize after bathing.
The alkaline pH 8.8 and 434.9 mg/kg of bicarbonate may soften the skin's surface for a silky skin feel, while 595.1 mg/kg of chloride is traditionally associated with restorative warmth that lingers after bathing.
Avoid bathing during acute illness or with serious heart or kidney conditions, and do not bathe right after drinking alcohol or eating.
※ See the analysis data below for detailed contraindications
ANALYSIS DATAView all analysis fields ▼
Source Info
- Source name
- Naradanosato Onsen
- Spring type
- Sodium Chloride and Bicarbonate Hot Spring
- Source temperature
- 41.3℃
- pH
- 8.8
- Flow type
- 動力揚湯
- Osmotic pressure
- 低張性
Analysis Document
- Analysis date
- 2019-02-25
- Analyst organization
- 一般社団法人山梨県食品衛生協会
- Registration No.
- 16山梨み自第4号
Cations
- Hydrogen ion H⁺
- 0.00 mg/kg
- Lithium ion Li⁺
- 2.2 mg/kg
- Sodium ion Na⁺
- 558 mg/kg
- Potassium ion K⁺
- 12.5 mg/kg
- Ammonium ion NH₄⁺
- 9.0 mg/kg
- Magnesium ion Mg²⁺
- 0.30 mg/kg
- Calcium ion Ca²⁺
- 3.0 mg/kg
- Aluminum ion Al³⁺
- 0.00 mg/kg
- Manganese ion Mn²⁺
- 0.00 mg/kg
- Iron(II) ion Fe²⁺
- 0.10 mg/kg
- Iron(III) ion Fe³⁺
- 0.00 mg/kg
- Lead ion Pb²⁺
- < 0.01 mg/kg
- Strontium ion Sr²⁺
- 0.40 mg/kg
- Barium ion Ba²⁺
- 0.00 mg/kg
- Copper ion Cu²⁺
- < 0.05 mg/kg
- Cadmium ion Cd²⁺
- < 0.003 mg/kg
- Total cations
- 0.59 mg/kg
Anions
- Fluoride ion F⁻
- 10.3 mg/kg
- Chloride ion Cl⁻
- 595 mg/kg
- Hydroxide ion OH⁻
- 0.10 mg/kg
- Hydrogen sulfide ion HS⁻
- 1.7 mg/kg
- Thiosulfate ion S₂O₃²⁻
- 0.10 mg/kg
- Sulfate ion SO₄²⁻
- 2.0 mg/kg
- Bicarbonate ion HCO₃⁻
- 435 mg/kg
- Carbonate ion CO₃²⁻
- 30.0 mg/kg
- Bromide ion Br⁻
- 0.00 mg/kg
- Iodide ion I⁻
- 0.10 mg/kg
- Hydrogen sulfate HSO₄⁻
- 0.00 mg/kg
- Hydrogen phosphate HPO₄²⁻
- 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
- Metaborate ion BO₂⁻
- 0.00 mg/kg
- Total anions
- 1.1 mg/kg
Undissociated Components
- Phosphoric acid H₃PO₄
- 0.00 mg/kg
- Arsenious acid HAsO₂
- 0.00 mg/kg
- Metasilicic acid H₂SiO₃
- 33.4 mg/kg
- Metaboric acid HBO₂
- 21.9 mg/kg
- Total undissociated
- 0.06 mg/kg
Dissolved Gas
- Free carbon dioxide CO₂
- 0.00 mg/kg
- Free hydrogen sulfide H₂S
- 0.00 mg/kg
- Total dissolved gas
- 0.00 mg/kg
Totals
- Total dissolved substances
- 1.7 mg/kg
- Component total
- 1.7 mg/kg
- Evaporation residue
- 1.5 mg/kg
Usage
- Heating
- No
- Dilution
- No
- 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
