COSRX Acne Pimple Master Patch 96 Patches | Hydrocolloid Acne Spot Patches
Hydrocolloid acne patches that protect blemishes, absorb impurities and support faster healing while helping reduce redness and prevent further irritation
Choose an option
- Overnight Action
- Stops Picking
- Three Sizes
- No Actives
Only 5 left in stock
It works because you can't touch it.
A hydrocolloid patch draws fluid out of a whitehead and flattens it overnight. That is the advertised half. The unadvertised half is that it puts a physical barrier between your fingers and the spot - and picking is what turns a two-day blemish into a two-month mark.
- 96 patches
- Three sizes
- Fragrance-free
How it feels
A thin, near-invisible disc that turns opaque white as it absorbs fluid - which is also how you know it is finished.
Key ingredients
Hydrocolloid
The whole product. A gel-forming dressing borrowed from wound care that absorbs fluid and keeps the area moist while it heals.
Cellulose Gum
Part of the adhesive matrix. It is what lets the patch stay on overnight without lifting at the edges.
Polyisobutylene
The adhesive layer. Chosen to hold through a night on the pillow and still come off without tearing skin.
About the product
COSRX's Acne Pimple Master Patch is the product that took hydrocolloid dressings out of the pharmacy and into skincare routines.
There are no active ingredients. The patch is a hydrocolloid disc - the same material used in wound dressings - that absorbs fluid from a surfaced whitehead and holds a moist environment over it while it settles. Overnight, a raised spot typically flattens, and the patch turns opaque white where it has drawn fluid out. That colour change is the signal it has done its job.
The second effect matters as much as the first and is rarely mentioned: the patch is a physical barrier between your fingers and the blemish. Picking is what converts a spot that would have cleared in two days into a mark that lasts two months, and a patch makes picking impossible without deliberately removing it.
The pack contains 96 patches across three sizes, so a small one suits a single spot near the nose and a larger one covers a cluster along the jaw. Apply to clean, completely dry skin - anything oily underneath will stop it adhering.
Why we stock it
Nothing else in the range earns its price so plainly. A patch costs pennies, it works overnight, and its real benefit is one nobody advertises: you physically cannot pick at a spot through a hydrocolloid.
Product information
- Brand
- COSRX
- Skin concerns
- barrier, blemishes, brightening, dark-spots, dullness, firmness, hydration, puffiness, sensitivity
Ingredients
Hydrocolloid patch with polyurethane film
Care & Use
How to Use
Apply to clean, dry skin over a whitehead and leave 6-8 hours or overnight. Replace when the patch turns white. Do not apply over unbroken cystic spots.
- 1.
Apply to clean, dry
Apply to clean, dry skin over a whitehead and leave 6-8 hours or overnight.
- 2.
Replace when the patch
Replace when the patch turns white.
- 3.
Do not apply over
Do not apply over unbroken cystic spots.
Product details
Product details
- Brand
- COSRX
- Product type
- Beauty
- SKU
- cosrx-acne-pimple-master-patch-96-96-patches-3-sizes
- Barcode
- 8809416470245
- Volume
- 96 patches, 3 sizes
- Care
- 96 patches total: 36 Large, 20 Medium and 40 Small patches across 4 sheets. Choose a patch slightly larger than the affected area Cleanse the area around the blemish and allow the skin to dry. Select a patch slightly larger than the problem spot and apply directly to the affected area. Leave it in place to protect the blemish and support healing
Frequently asked questions
Will it work on a spot under the skin?
No. Hydrocolloid works by absorbing fluid, so it needs a surfaced whitehead to draw from. On a deep cystic blemish with nothing at the surface, a patch has nothing to do.
How long do I leave it on?
Until it turns opaque white, usually six to eight hours. Overnight is the natural window. If it whitens quickly you can replace it with a fresh one.
Can I put it on over serum or moisturiser?
No - it needs bare, completely dry skin to stick. Apply your routine to the rest of your face and leave the spot clean.
Can I wear makeup over it?
The thinner patches are close to invisible and can take a light layer of base, though the edge usually shows under heavy coverage. Most people use them overnight for that reason.
Does it contain salicylic acid or tea tree?
No. These are plain hydrocolloid with no actives, which is why they suit sensitive skin and can be used on a spot that is already inflamed.
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