What type of hot spring is Asahi Onsen?

Asahi Onsen is classified as "ナトリウム-塩化物・炭酸水素塩泉" (塩化物泉, 炭酸水素塩泉 spring type).

What is the pH of Asahi Onsen?

Asahi Onsen (Asahi Spring) has a pH of 7.9.

Does Asahi Onsen have beauty benefits for skin?

Yes. Asahi Onsen contains 58.9mg/kg of metasilicic acid, exceeding the 50mg/kg beauty spring standard. It helps improve skin texture and moisture retention.

Is Asahi Onsen a natural flow hot spring?

Asahi Onsen is a natural flow spring, unheated, undiluted, non-recycled.

Asahi Onsen

韮崎旭温泉；韮崎旭の湯

Info pending

Yamanashi Nirasaki, Yamanashi

山梨県韮崎市

Day-use BathFree-Flowing Onsen

AT A GLANCE

Asahi Onsen is a chloride spring and bicarbonate spring (pH 7.9, mildly alkaline). Naturally flowing (no recycling or dilution). Contains ≥50 mg/kg of metasilicic acid, certified as a beauty spring. Per Japan's Ministry of the Environment guidelines, indicated for peripheral circulation disorders, cold sensitivity, and wound healing.

SOURCES

♨Asahi Spring

あさひ温泉

Sodium chloride bicarbonate spring

塩

Chloride Spring

炭

Carbonated SpringpH 7.938.2℃Pumped

See effects, components & details

How Long to Stay (Toji)

Start with 2 nights / 3 days

Japan’s Ministry of the Environment notes that even a short stay refreshes you. For a full therapeutic cure, around 2–3 weeks is the guideline.