COSRX Master Patch Original Fit (EU Package)

An ultra-thin, near-invisible hydrocolloid acne patch engineered to adhere firmly and flatly over individual blemishes — creating a sealed, moist, occlusive environment that supports the skin's natural recovery process while physically preventing unconscious touching, squeezing, or contamination of the blemish. Advanced hydrocolloid technology absorbs excess sebum and impurities from the blemish as the patch works — the patch visibly turns white as it draws out fluid, confirming active absorption. Available in three sizes — S, M, and L — to fit all blemish sizes from targeted spot treatment to larger, more inflamed lesions. Hypoallergenic; dermatologist-tested; cruelty-free; paraben-free; sulfate-free; phthalate-free; fragrance-free.

Cellulose gum, styrene isoprene styrene block copolymer, polyisobutylene, petroleum resin, polyurethane film, liquid paraffin, tetrakis methane.

Each pack contains 24 patches in three sizes — S (small), M (medium), and L (large) — for targeted application to any blemish size. Each patch is for single use only; dispose of after removal. No expiry is printed on individual patches, but once the outer packaging is opened, store in a cool, dry place away from direct sunlight and humidity to maintain adhesive integrity.

COSRX is one of Korea's most trusted and globally beloved skincare brands, renowned for its effective, straightforward, and accessible formulations. Developed and manufactured in Korea under rigorous quality standards, COSRX combines advanced hydrocolloid technology with a hypoallergenic, dermatologist-tested approach — delivering visible blemish care results that are trusted by millions of skincare enthusiasts worldwide.

Cleanse the skin thoroughly and ensure the blemish area is completely clean and dry — any residual oil or skincare product will prevent the patch from adhering. Select the most appropriate size — S for small, targeted spots; M for medium blemishes; L for larger or more inflamed lesions. Peel the patch from the backing and apply directly over the blemish, pressing gently to secure. Leave on for a minimum of six hours or overnight for best results. Remove gently by lifting from the edges. Apply to clean, dry skin only — do not apply over open wounds, recently popped blemishes, or heavily powdered skin. Suitable for all skin types.

For external use only. Apply only to clean, dry, and intact skin – do not apply to open wounds, severely inflamed cystic blemishes, or injured skin. Do not apply to facial areas with active eczema or psoriasis or severely damaged skin without first seeking medical advice. Peel off carefully starting from the edges – do not pull off abruptly. Do not exceed a wearing time of 12 hours per patch. Keep out of the reach of children. To maintain adhesion, store cool and dry, protected from direct sunlight and moisture. Discontinue use if skin irritation, redness, or discomfort occurs.

Advanced hydrocolloid technology creates a sealed, moist, occlusive environment over the blemish — supporting the skin's natural recovery process while physically absorbing excess sebum and impurities from the lesion. As the hydrocolloid works, the patch visibly turns white, confirming active fluid absorption. The polyurethane film backing provides a protective, near-invisible layer that shields the blemish from external contamination, UV exposure, and unconscious touching or picking — which can worsen blemishes and increase the risk of post-blemish marks. Three sizes — S, M, and L — ensure precise, gap-free coverage for any blemish size. Hypoallergenic; dermatologist-tested; cruelty-free; paraben-free; sulfate-free; phthalate-free; fragrance-free.