二ノ平温泉
Ninotaira OnsenOperated by · 箱根ゆとわ
- Color
- colorless and transparent
- Taste
- tasteless
- Odor
- odorless
- Warmingcold sensitivity
- Aches & jointsstiff shoulders
- Smooth skindry, rough skin
A sodium-chloride spring from the Ninotaira source. The wellhead runs at 84 °C — among Japan's hottest natural sources — and is diluted with water to bring the bath down to 40–42 °C, with the salt content carrying long-lasting warmth. Weakly alkaline (pH 8.3) and soft on the skin, the water is unusually rich in metasilicic acid at 272 mg/kg, leaving the kind of thin silica film that makes skin feel noticeably smoother afterwards.
Analyzed Jul 11, 2019·Cert no. 宮城野 第114号