Best onsen for Dry Skin / Atopy in Ehime

1 picks ranked from onsen analysis-sheet data (official, verified and free-flowing sources prioritised)

Try your own diagnosis
Oku Dogo Ichiyuno Mori Sulphur Spring
Sulphur SpringRadioactive SpringSimple SpringInfo pending
Oku Dogo Ichiyuno Mori
奥道後 壱湯の守
Ehime Matsuyama· 奥道後第4-1号源泉
Gorge Sulfur Spring

Okudogo No. 4-1 Gensen is drawn from the gorge upstream along the Ishite River from Dogo's historic spa town. Its lukewarm 38.7°C water is alkaline at pH 9.4 and pairs hydrosulfide ions with radon, an uncommon combination. A faint sulfur scent and slippery feel suit bathers who like long, unhurried soaks to the sound of the stream.

Onsen RyokanPrivate Rental BathRoom with Open-air Bath
StimulationBactericidalSkin BeautyHeat RetentionRelaxation
pHStrongly Alkaline9.4
0714
TEMP38.7℃
0℃50℃100℃
KEY MINERALS
Radon
118 Bq/kg

A rare radioactive spring where trace radiation absorbed via inhalation and skin is expected to stimulate cells (the "hormesis effect").

Fluoride ion
15.5 mg/kg

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

Metaborate ion
11.5 mg/kg

Gentle antibacterial action that conditions the skin.

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Why onsen are considered good for Dry Skin / Atopy

The benefits of an onsen vary by spring type. Certain spring types are traditionally considered good for Dry Skin / Atopy, and the corresponding indications are listed in the legally required onsen analysis sheets. my Onsen Techo ranks the onsen best suited to your symptom and area based on analysis-sheet data, which is mandated for display under Article 18 of Japan's Hot Spring Act. Each onsen page shows mineral visualisations, bathing tips and booking options.