Ariston Hotel Oita
Analysis VerifiedDrawn from 700 meters beneath the center of Oita City, this private source is a true urban oasis. The Ariston Hotel Oita source boasts a pH of 8.6 and abundant bicarbonate ions, which gently exfoliate the skin, leaving it remarkably smooth. Its amber-hued waters invite deep relaxation, melting away the day's fatigue. It is perfect for those seeking to refresh and rejuvenate after a day of business or sightseeing.
The bar length shows how abundant each component is compared to thresholds that make it "distinctive" (therapeutic spring standards, beauty spring criteria, etc.).
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.
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 a pH of 8.6, this alkaline spring softens the skin. It's best to take several short dips of 10-15 minutes rather than a single long soak. Be sure to moisturize after bathing, as your skin may feel dry. Allow the amber water to enhance your relaxation.
With a pH of 8.6 and a remarkable 203.0 mg/kg of metasilicic acid, this water offers balneotherapy for truly silky skin. It naturally exfoliates, promising a smooth, polished feel after your bath. It's the perfect soak for days when you need to rejuvenate both body and mind.
Due to its high alkalinity, moisturizing after bathing is important for those with sensitive or dry skin. The spring's properties can lead to feeling chilled, so stay warm afterward.
※ See the analysis data below for detailed contraindications
ANALYSIS DATAView all analysis fields ▼
Source Info
- Source name
- Ariston Hotel Oita
- Spring type
- Sodium Bicarbonate Hot Spring
- Old spring type name
- 純重曹泉
- Source temperature
- 52.1℃
- pH
- 8.6
- Flow type
- 掘削動力揚湯
- Osmotic pressure
- 低張性
Analysis Document
- Analysis date
- 2024-10-02
- Analyst organization
- 公益社団法人大分県薬剤師会
- Registration No.
- 大分県第3号
Cations
- Lithium ion Li⁺
- 0.40 mg/kg
- Sodium ion Na⁺
- 378 mg/kg
- Potassium ion K⁺
- 67.9 mg/kg
- Ammonium ion NH₄⁺
- 2.4 mg/kg
- Calcium ion Ca²⁺
- 5.1 mg/kg
- Iron(II) ion Fe²⁺
- 0.10 mg/kg
- Lead ion Pb²⁺
- 0.00 mg/kg
- Barium ion Ba²⁺
- 0.10 mg/kg
- Copper ion Cu²⁺
- 0.00 mg/kg
- Cadmium ion Cd²⁺
- 0.00 mg/kg
- Total cations
- 0.45 mg/kg
Anions
- Fluoride ion F⁻
- 3.4 mg/kg
- Chloride ion Cl⁻
- 117 mg/kg
- Hydrogen sulfide ion HS⁻
- 0.20 mg/kg
- Thiosulfate ion S₂O₃²⁻
- 0.10 mg/kg
- Bicarbonate ion HCO₃⁻
- 792 mg/kg
- Carbonate ion CO₃²⁻
- 67.2 mg/kg
- Bromide ion Br⁻
- 0.30 mg/kg
- Hydrogen phosphate HPO₄²⁻
- 0.40 mg/kg
- Total anions
- 0.98 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
- 203 mg/kg
- Metaboric acid HBO₂
- 6.3 mg/kg
- Total undissociated
- 0.21 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
Trace Components
- Radon Rn
- 0
Totals
- Total dissolved substances
- 1.6 mg/kg
- Component total
- 1.6 mg/kg
- Evaporation residue
- 1.2 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, Xeroderma, Chronic pain or stiffness in muscles and joints (e.g., rheumatoid arthritis, osteoarthritis, low back pain, neuralgia, frozen shoulder, bruises, sprains in chronic phase), Muscle stiffness due to motor paralysis, Poor circulation, Gastrointestinal dysfunction (e.g., stomach heaviness, intestinal gas), High blood pressure (mild), Impaired glucose tolerance (diabetes), Mild hypercholesterolemia, Mild asthma or emphysema, Hemorrhoid pain, Autonomic instability, Various symptoms caused by stress (e.g., sleep disorders, depression), Post-illness recovery period, Fatigue recovery, Health promotion, Cuts and grazes, Xeroderma
- General indications
- High blood pressure (mild), Rheumatoid arthritis, Autonomic instability, Insomnia, Depression, 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), (Bathing) Active stages of illness (especially with fever), Active tuberculosis, Advanced malignant tumors or severe anemia with significant physical debilitation, Severe heart or lung disease causing shortness of breath with slight movement, Severe kidney disease with edema, Gastrointestinal bleeding, Visible bleeding, Acute exacerbation of a chronic illness
Drinking
- Drinkability
- Not drinkable
