Ohara Onsen Seryo
大原温泉 芹生
Kyoto Sakyo Ward, Kyoto
京都府 左京区

Ohara Onsen

Analysis Verified
大原温泉
Skin-Beautifying Spring of Kyoto's Mountain Village

The Ohara Onsen source, which began flowing in 2004, is a relatively new discovery nestled in the quiet mountain village of Ohara, Kyoto. This precious spring water is exclusively available at just three inns: Oharasansou, Ohara no Sato, and Seryo. Located near famed temples like Sanzen-in and Jikko-in, its clear, gentle waters offer deep relaxation for body and soul, surrounded by the capital's rich history and nature.

AI Generated
SPRING TYPE
Simple Spring

Spring water that is gentle on the skin with a very low likelihood of irritation. Safe for bathing infants and those with sensitive skin.

See features & indications
Bathing indications
Autonomic instabilityInsomniaDepression
Definition :Total dissolved solids (excluding gases) below 1,000 mg/kg; water temperature 25°C or above.
Source: 環境省「あんしん・あんぜんな温泉利用のいろは」(監修:日本温泉気候物理医学会)Read full article
TEMPERATURE
26.0
Low Temperature Spring
Below body temperature; bathing will gradually cool the body.
KEY MINERALS

The bar length shows how abundant each component is compared to thresholds that make it "distinctive" (therapeutic spring standards, beauty spring criteria, etc.).

Fluoride ionSee detail
8.2 mg/kg

Mild antibacterial action keeps the skin clean. Trace transdermal absorption supports tooth and bone health.

Bicarbonate ionSee detail
222 mg/kg

Softens dead skin cells for a silky bathing feel.

Metasilicic acidSee detail
15.9 mg/kg

A natural moisturizer that leaves a hydrated feel on the skin.

Metaboric acidSee detail
0.8 mg/kg

A trace component with gentle antibacterial and anti-inflammatory action.

Strontium ion
0.8 mg/kg

A rarely-found trace element with a gentle tightening action.

CHARACTER · COMPOSITION PROFILE
1234StimulationBactericidalSkin BeautyHeat RetentionRelaxation

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.

USAGE
HeatedYes
DilutedNo
RecycledYes
FilteredNo
DisinfectedNo
AdditivesNo

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.

EFFECTS
Spring-specific indications (bathing)
Chronic pain or stiffness in muscles and joints (rheumatoid arthritisosteoarthritislow back painneuralgiafrozen shoulderchronic stages of bruises and sprains)Muscle stiffness due to motor paralysisPoor circulationGastrointestinal dysfunction (stomach heavinessintestinal gasetc.)High blood pressure (mild)Impaired glucose tolerance (diabetes)Dyslipidemia (mild)Mild asthma or emphysemaHemorrhoid painAutonomic instabilityStress-related symptoms (insomniadepressionetc.)Post-illness recoveryFatigue recoveryHealth promotion
Contraindications
Active stages of illness (especially with fever)Active tuberculosisAdvanced malignant tumors or severe anemia causing significant physical weaknessSevere heart or lung disease causing shortness of breath with slight movementSevere kidney disease with swellingGastrointestinal bleedingVisible bleedingAcute exacerbation of chronic illness
BATHING TIPS
AI Generated

With a gentle temperature of 26.0°C, this lukewarm spring is ideal for long, relaxing soaks without straining the body. The mildly alkaline water is soft on the skin, leaving you feeling refreshed afterward. Taking your time to soak allows for deep mental and physical relaxation.

EFFECT STORY
AI Generated

Although a low-temperature spring at 26.0°C, its main component, hydrogen carbonate ions (222.3 mg/kg), is expected to have a smoothing effect on the skin. Its mild alkalinity makes it perfect for those with sensitive skin or for days when you want a long, leisurely bath. It is also suitable for therapeutic stays to alleviate chronic muscle/joint pain and poor circulation.

CAUTIONS
AI Generated

Please avoid bathing during active stages of illness, especially with a fever, or if you are extremely weak. It is also contraindicated for individuals with severe heart or kidney disease, or active tuberculosis.

※ See the analysis data below for detailed contraindications

ANALYSIS DATAView all analysis fields ▼

Source Info

Source name
大原温泉
Spring type
単純温泉(低張性弱アルカリ性低温泉)
Source temperature
26℃
Osmotic pressure
低張性

Analysis Document

Analysis date
2014-03-13
Analyst organization
社団法人 京都微生物研究所
Registration No.
京都府 第2号

Cations

Hydrogen ion H⁺
0.00 mg/kg
Lithium ion Li⁺
0.00 mg/kg
Sodium ion Na⁺
68.1 mg/kg
Potassium ion K⁺
3.9 mg/kg
Magnesium ion Mg²⁺
3.9 mg/kg
Calcium ion Ca²⁺
9.0 mg/kg
Aluminum ion Al³⁺
0.00 mg/kg
Manganese ion Mn²⁺
0.00 mg/kg
Iron(II) ion Fe²⁺
0.20 mg/kg
Iron(III) ion Fe³⁺
0.00 mg/kg
Strontium ion Sr²⁺
0.80 mg/kg
Barium ion Ba²⁺
0.20 mg/kg
Total cations
0.09 mg/kg

Anions

Fluoride ion F⁻
8.2 mg/kg
Chloride ion Cl⁻
3.8 mg/kg
Hydrogen sulfide ion HS⁻
0.20 mg/kg
Sulfate ion SO₄²⁻
3.5 mg/kg
Bicarbonate ion HCO₃⁻
222 mg/kg
Carbonate ion CO₃²⁻
3.0 mg/kg
Bromide ion Br⁻
0.00 mg/kg
Iodide ion I⁻
0.00 mg/kg
Hydrogen metasilicate HSiO₃⁻
0.00 mg/kg
Metaborate ion BO₂⁻
0.00 mg/kg
Total anions
0.24 mg/kg

Undissociated Components

Metasilicic acid H₂SiO₃
15.9 mg/kg
Metaboric acid HBO₂
0.80 mg/kg
Total undissociated
0.02 mg/kg

Dissolved Gas

Free carbon dioxide CO₂
4.0 mg/kg
Free hydrogen sulfide H₂S
0.00 mg/kg
Total dissolved gas
0.00 mg/kg

Totals

Total dissolved substances
0.35 mg/kg
Component total
0.35 mg/kg

Usage

Heating
Yes
Dilution
No
Recycle / Filter
Recycled
Additives
No
Disinfection
No

Indications & Contraindications

Bathing indications
Chronic pain or stiffness in muscles and joints (rheumatoid arthritis, osteoarthritis, low back pain, neuralgia, frozen shoulder, chronic stages of bruises and sprains), Muscle stiffness due to motor paralysis, Poor circulation, Gastrointestinal dysfunction (stomach heaviness, intestinal gas, etc.), High blood pressure (mild), Impaired glucose tolerance (diabetes), Dyslipidemia (mild), Mild asthma or emphysema, Hemorrhoid pain, Autonomic instability, Stress-related symptoms (insomnia, depression, etc.), Post-illness recovery, Fatigue recovery, Health promotion
Contraindications
Active stages of illness (especially with fever), Active tuberculosis, Advanced malignant tumors or severe anemia causing significant physical weakness, Severe heart or lung disease causing shortness of breath with slight movement, Severe kidney disease with swelling, Gastrointestinal bleeding, Visible bleeding, Acute exacerbation of chronic illness

Drinking

Drinkability
Not drinkable
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The descriptions, catch phrases, and translations on this page are generated by AI (Claude). pH, temperature, and component values are OCR-extracted from the official analysis report. Learn more