Cosrx Acne Pimple Master Patch

The COSRX Acne Pimple Master Patch is a set of hydrocolloid stickers that sit over a single blemish and cover it day or night. Each patch is thin, slightly translucent and stays put, so you can wear it while you sleep or under makeup without it sliding off.

The hydrocolloid material works by gently drawing out excess fluid from the surface of a blemish while keeping the area underneath cushioned and comfortable. As it does this, the patch turns opaque and white, which is your cue that it has done its job and is ready to be swapped for a fresh one.

What the patches do for your skin

• Cover and shield a blemish from fingers, friction and outside dirt while it settles down.
• Help absorb surface fluid and impurities so the spot looks flatter and less noticeable.
• Keep the covered area cushioned and comfortable instead of dry and tight.
• Act as a physical reminder not to pick or touch, which helps keep the look of the skin smoother.

How to use

1. Cleanse and fully dry the area — patches grip best on clean, dry skin.
2. Choose a patch that comfortably covers the blemish, peel it off the sheet and press it on.
3. Leave it on for several hours or overnight.
4. Once the patch turns white and opaque, peel it off gently and apply a fresh one if needed.

Who it's for

Suitable for most skin types, including oily and combination skin that is prone to occasional blemishes. Because the patch is a simple cover with no added fragrance described, it works as a targeted step you can add over individual spots rather than across the whole face.

Do hydrocolloid patches work under makeup?

Yes. The patches are thin and lie flat against the skin, so you can apply foundation or concealer over them. For the most discreet finish, smooth your base product gently over the edges.

How long should I leave a patch on?

Leave it in place for several hours or overnight, then replace it once it has turned white and opaque. A single blemish may go through a few patches before it calms down.