Hotel New Tsuruta Gensen 1-go
Analysis VerifiedHotel New Tsuruta Gensen 1-go is a private source located in the Kitahama area, the central district of the Beppu Onsen region, which boasts the largest volume of hot spring water in Japan. This source feeds the hotel's panoramic bath, known as "Nijo-no-yu," and is descended from a historic spring said to have been flowing since the Tenpo era (1830-1844). The mildly alkaline chloride spring is gentle on the skin and warms the body to its core. It is recommended for those who wish to unwind and experience a moment of luxury while soaking in historic waters with a view of Beppu Bay.
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.
Transdermal absorption gently supports skin hydration and muscle relaxation.
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.
As this is a high-temperature 56.0°C source, the bathwater is adjusted to a suitable temperature. The chloride spring has high heat-retention properties, preventing chills. It's best to avoid long soaks; exit the bath when you start to perspire. For lasting moisture, don't rinse off after bathing, allowing the salt to remain on your skin.
The primary component, chloride ions (1600 mg/kg), forms a thin veil on the skin, preventing moisture from evaporating after your bath. This restorative warmth effect is ideal for those who feel the cold. Additionally, the mildly alkaline pH of 7.8 and abundant metasilicic acid (292 mg/kg) are expected to smooth the skin, making it a recommended balneotherapy for achieving silky skin.
Due to the high concentration of minerals, those prone to "yu-atari" (onsen-sickness) should avoid long soaks. This water is not for drinking. Please refrain from bathing if you have general contraindications like active tuberculosis or severe heart disease.
※ See the analysis data below for detailed contraindications
ANALYSIS DATAView all analysis fields ▼
Source Info
- Source name
- Hotel New Tsuruta Gensen 1-go
- Spring type
- Sodium-Calcium-Magnesium Chloride Hot Spring
- Old spring type name
- 含塩化土類-食塩泉
- Source temperature
- 56℃
- pH
- 7.8
- Flow type
- 動力揚湯
- Osmotic pressure
- 低張性
Analysis Document
- Analysis date
- 2025-01-28
- 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⁺
- 2.3 mg/kg
- Sodium ion Na⁺
- 525 mg/kg
- Potassium ion K⁺
- 83.8 mg/kg
- Ammonium ion NH₄⁺
- 1.1 mg/kg
- Magnesium ion Mg²⁺
- 170 mg/kg
- Calcium ion Ca²⁺
- 328 mg/kg
- Manganese ion Mn²⁺
- 2.5 mg/kg
- Iron(II) ion Fe²⁺
- 0.50 mg/kg
- Lead ion Pb²⁺
- 0.00 mg/kg
- Strontium ion Sr²⁺
- 2.2 mg/kg
- Barium ion Ba²⁺
- 0.60 mg/kg
- Copper ion Cu²⁺
- 0.00 mg/kg
- Cadmium ion Cd²⁺
- 0.00 mg/kg
- Total cations
- 1.1 mg/kg
Anions
- Fluoride ion F⁻
- 0.00 mg/kg
- Chloride ion Cl⁻
- 1600 mg/kg
- Sulfate ion SO₄²⁻
- 124 mg/kg
- Bicarbonate ion HCO₃⁻
- 530 mg/kg
- Bromide ion Br⁻
- 5.5 mg/kg
- Phosphate ion PO₄³⁻
- 0.00 mg/kg
- Total anions
- 2.3 mg/kg
Undissociated Components
- Sulfuric acid H₂SO₄
- 0.00 mg/kg
- Phosphoric acid H₃PO₄
- 0.00 mg/kg
- Arsenious acid HAsO₂
- 0.20 mg/kg
- Metasilicic acid H₂SiO₃
- 292 mg/kg
- Metaboric acid HBO₂
- 5.0 mg/kg
- Total undissociated
- 0.30 mg/kg
Dissolved Gas
- Free carbon dioxide CO₂
- 0.90 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
- 3.7 mg/kg
- Component total
- 3.7 mg/kg
- Evaporation residue
- 3.7 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, Cuts and grazes, Peripheral circulatory failure, Poor circulation, Depression, Xeroderma, Chronic pain or stiffness in muscles and joints (chronic phase of conditions such as rheumatoid arthritis, osteoarthritis, low back pain, neuralgia, frozen shoulder, bruises, sprains), Muscle stiffness due to motor paralysis, Gastrointestinal dysfunction (stomach heaviness, intestinal gas, etc.), High blood pressure (mild), Impaired glucose tolerance (diabetes), Dyslipidemia, Mild asthma or emphysema, Hemorrhoid pain, Autonomic instability, Stress-related symptoms (insomnia, depression, etc.), Convalescence, Fatigue recovery, Health promotion
- 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), Active phases of illness (especially with fever), Active tuberculosis, Advanced malignant tumors or severe anemia and other conditions causing significant physical debilitation, Severe heart or lung disease causing shortness of breath with slight movement, Severe kidney disease with swelling, Gastrointestinal bleeding, When visible bleeding is present, Acute exacerbation of chronic illness
Drinking
- Drinkability
- Not drinkable
