谷戸畑1号・谷戸畑2号(混合泉)
Yatobata Spring No.1 & No.2 (Blend)Mixed source
硫
Sulfate
Sodium-Calcium Sulfate spring
Hot source · 71°CHigh silica
Composition fingerprint
Na⁺74
Ca²⁺25
SO₄²⁻83
Cl⁻16
◀ 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
- Circulationtired legs
- Smooth skindry, rough skin
A sodium-calcium sulfate spring of the settled, mineral-rich kind, classified hypotonic, alkaline, and high-temperature on the certificate. The alkaline pH gives the slippery, beauty-water feel that sits in the Japanese 'bihada-no-yu' family. Two wellheads run at 71.1 °C and 68.3 °C — among Japan's hottest natural sources — and a notable 62.9 mg/kg of metasilicic acid layers a thin silica film that leaves skin feeling smoother long after the bath.
Sampled at wellhead