スーパー温泉 やまなみの湯
Super Onsen Yamanami-no-yu湯
Simple
- Color
- colorless and clear
- Taste
- tasteless
- Odor
- odorless
Sodium Sulfate-Bicarbonate spring
pH 8.9AlkalineHot source · 65°CHigh silica
Composition fingerprint0.8 g/kg dissolved · Hypotonic
Na⁺91
SO₄²⁻36
HCO₃⁻32
CO₃²⁻18
◀ CationsAnions ▶
- Sodium Na⁺
- salt's cation — pairs with chloride to make the water salty.
- Sulfate SO₄²⁻
- "gypsum / Glauber's salt" — vessels and wound healing.
Known good for
- Aches & jointsstiff shoulders
- Smooth skindry, rough skin
- Recoveryfatigue, stress
A simple alkaline thermal spring rising in the Tsurumi district of Beppu. Its mineral load is light, so the water reads gentle and low-irritation, with a soft, rounded feel rather than a heavy mineral bite. The alkalinity delivers the slippery touch that places this squarely in Japan's beauty-water family, and it is backed by an unusually generous 120.4 mg/kg of metasilicic acid, which leaves the kind of thin silica film that makes skin feel noticeably smoother afterwards. The wellhead itself ranks among Japan's hottest natural sources.
Sampled at wellhead·Analyzed Sep 8, 1997·大分県衛生環境研究センター
