Sheet hydrating masks are typically left on for about 15–30 minutes. Peel-off masks are usually left to set for about 20–30 minutes before removal.
The results show hydrocolloid pimple patches — thin hydrocolloid stickers that absorb fluid from the blemish, protect it from contact and contamination, and can be worn overnight or during the day.
Hydrogel and sheet hydrating masks deliver moisture via a hydrogel or sheet saturated with humectants like hyaluronic acid. They’re described for dry, very dry, normal, combination, and mature skin, and are typically left on about 15–30 minutes after cleansing.
Deep‑cleansing and pore‑minimizing face packs commonly use clays (for example, kaolin and bentonite) and astringents such as witch hazel. Some masks also list ingredients like peppermint oil and camphor.