Hotel Sun Valley Annex
Analysis VerifiedThis private source is pumped from 300 meters underground in the port area of Beppu, Japan's premier onsen city. Drilled exclusively for the Hotel Sun Valley Annex, this spring delivers the blessings of Beppu's waters to its visitors. [3] The simple, mildly alkaline thermal water is gentle and characterized by a smooth texture that softly envelops the skin. After bathing, the skin feels silky and deeply moisturized. It is an ideal spring for those seeking to gently unwind both body and mind amidst the energy of Beppu.
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.
This is a simple hot spring with a mild, skin-friendly pH of 8.3, but the source temperature is a high 52.2°C. Avoid long soaks; it's best to acclimate your body with "kakeyu" (rinsing) first, then practice "bunkatsuyoku" (split bathing) with several short dips. Remember to moisturize your skin after bathing.
The mildly alkaline water with a pH of 8.3 gently exfoliates the skin, while a high metasilicic acid content of 153.1 mg/kg, a natural moisturizer, promotes a "silky skin" feeling post-bath. [15] This gentle simple spring is perfect for balneotherapy, offering deep relaxation to soothe away daily fatigue.
Due to the high temperature, please be cautious of overheating or dizziness from prolonged bathing. Those with high blood pressure or heart conditions are advised to bathe carefully according to their physical condition.
※ See the analysis data below for detailed contraindications
ANALYSIS DATAView all analysis fields ▼
Source Info
- Source name
- Hotel Sun Valley Annex
- Spring type
- Simple Hot Spring
- Old spring type name
- 単純温泉
- Source temperature
- 52.2℃
- pH
- 8.3
- Flow type
- 動力揚湯
- Osmotic pressure
- 低張性
Analysis Document
- Analysis date
- 2020-07-30
- Analyst organization
- 大分県衛生環境研究センター
- Registration No.
- 大分県第1号
Cations
- Lithium ion Li⁺
- 1.3 mg/kg
- Sodium ion Na⁺
- 241 mg/kg
- Potassium ion K⁺
- 23.8 mg/kg
- Magnesium ion Mg²⁺
- 2.9 mg/kg
- Calcium ion Ca²⁺
- 13.6 mg/kg
- Manganese ion Mn²⁺
- 0.20 mg/kg
- Lead ion Pb²⁺
- 0.00 mg/kg
- Strontium ion Sr²⁺
- 0.10 mg/kg
- Barium ion Ba²⁺
- 0.10 mg/kg
- Copper ion Cu²⁺
- 0.00 mg/kg
- Total cations
- 0.28 mg/kg
Anions
- Fluoride ion F⁻
- 1.2 mg/kg
- Chloride ion Cl⁻
- 319 mg/kg
- Sulfate ion SO₄²⁻
- 65.0 mg/kg
- Bicarbonate ion HCO₃⁻
- 122 mg/kg
- Carbonate ion CO₃²⁻
- 6.3 mg/kg
- Bromide ion Br⁻
- 1.0 mg/kg
- Nitrate ion NO₃⁻
- 0.30 mg/kg
- Hydrogen phosphate HPO₄²⁻
- 0.30 mg/kg
- Total anions
- 0.52 mg/kg
Undissociated Components
- Arsenious acid HAsO₂
- 1.1 mg/kg
- Metasilicic acid H₂SiO₃
- 153 mg/kg
- Metaboric acid HBO₂
- 9.9 mg/kg
- Total undissociated
- 0.16 mg/kg
Dissolved Gas
- Total dissolved gas
- 0.00 mg/kg
Totals
- Total dissolved substances
- 0.96 mg/kg
- Component total
- 0.96 mg/kg
- Evaporation residue
- 0.87 mg/kg
Usage
- Heating
- No
- Dilution
- Yes
- Recycle / Filter
- No
- Additives
- No
- Disinfection
- No
Indications & Contraindications
- Bathing indications
- Autonomic instability, Insomnia, Depression, Chronic pain or stiffness in muscles and joints (chronic phase of conditions such as rheumatoid arthritis, osteoarthritis, lower back pain, neuralgia, frozen shoulder, bruises, sprains), muscle stiffness due to motor paralysis, poor circulation, gastrointestinal dysfunction (e.g., stomach heaviness, intestinal gas), mild high blood pressure, impaired glucose tolerance (diabetes), mild dyslipidemia, mild asthma or emphysema, hemorrhoid pain, autonomic instability, stress-related symptoms (e.g., insomnia, depression), post-illness recovery, fatigue recovery, health promotion
- General indications
- High blood pressure (mild), Rheumatoid arthritis, 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), Acute illness (especially with fever), active tuberculosis, malignant tumors, severe heart disease, respiratory failure, kidney failure, bleeding disorders, severe anemia, other diseases in active progression, pregnancy (especially in the first and last trimesters)
Drinking
- Drinkability
- Not drinkable
