Jeju Volcanic Ash (Songi) in summer: how to adjust
Using Jeju Volcanic Ash (Songi) in summer: the season brings heat, humidity, sweat and peak UV, so what changes is texture, frequency and what you layer around it — not usually whether you use it at all.
화산송이 (hwasan songi) is the reddish porous scoria that covers parts of Jeju, and it became a Korean beauty signature the way volcanic mud did in Iceland — through provenance as much as chemistry. As an oil absorber it works. As proof of anything about Jeju's air or water, it is a story sold with a mask.
What summer does to your skin
Heat, humidity, sweat and excess oil call for lightweight, fast-absorbing layers and a high, re-applied sunscreen.
How that changes Jeju Volcanic Ash (Songi)
Summer rewards lighter textures and punishes anything occlusive. Strength of active matters less than whether it survives a humid day. Jeju Volcanic Ash (Songi) works on oil control, pores & texture, blackheads & sebaceous filaments, and it is normally applied PM.
What to layer it with
☀️ Full summer guide →🌋 Jeju Volcanic Ash (Songi) guide →
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✍️ Written & reviewed by the KoreaPlus Editorial team — dermatologist-informed, cosmetic-science researched & source-cited. Last reviewed: 2026-08-23.
General educational information using cosmetic structure-function wording — not medical advice. Always patch-test new actives. © KoreaPlus.