水上高原温泉
Minakami Kogen OnsenOperated by · 水上高原ホテル200
湯
Simple
- Color
- colorless and transparent
- Taste
- not recorded
- Odor
- not recorded
Sodium Chloride-Bicarbonate spring
Top-decile alkaline
Composition fingerprint
Na⁺97
Cl⁻31
HCO₃⁻25
◀ CationsAnions ▶
- Sodium Na⁺
- salt's cation — pairs with chloride to make the water salty.
- Chloride Cl⁻
- table-salt anion — coats the skin and holds heat in.
Known good for
- Smooth skindry, rough skin
- Recoveryfatigue, stress
A sodium-led alkaline simple thermal spring (pH 9.19). Mineralization is light at around 0.38 g/kg — gentle on the body with little chemical edge. The alkalinity gives the slippery, soft feel typical of the Japanese 'beauty-water' family.
Sampled at bath inlet·Analyzed Apr 27, 2022·一般社団法人 群馬県薬剤師会(環境衛生試験センター)·Cert no. 群馬県薬第2号