Intact Korean batch codes on every unit

Free US shipping on orders of $100 or more. 100% authentic Korean-market formulas. Ships from our California warehouse, at your door in 3-5 days. Intact Korean batch codes on every unit.

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KOREAN PHARMACY

COSRX

Master Patch Clear Fit

An ultra-thin hydrocolloid patch with a matte, gradient edge made to disappear in daylight, applied to clean, dry skin and left in place overnight or under makeup.

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$4.99Comparable US listings run $5.00 (5 dated US observations, checked 10 September 2026)
  • Ships from our California warehouse
  • Duties prepaid
Suited to
NormalCombinationDry
Helps with
Shoppers who want the full Master Patch Clear Fit assembled as one purchase instead of sourcing each item on its ownConsistent use across every piece in the set, since a multi-step routine compounds over weeks of use rather than showing a result from one application

Sold out.

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One email, the moment this exact unit is back in stock. Not a newsletter and not a sequence, and your address comes off the list the second it is sent.

  • Duties prepaid
  • 30-day returns
  • Free US shipping on orders of $100 or more
  • Dispatched within 2 business days

Key benefits

  • A matte polyurethane film with gradient edges that blend into skin
  • Hydrocolloid absorbs fluid and cushions the spot through the day
  • Thin enough to wear under makeup without a visible ridge
  • Keeps hands and grime off the blemish while it settles

Key actives

Cellulose Gum

the absorbent core of the hydrocolloid dressing

How to use

  1. Press one Master Patch Clear Fit onto clean, dry skin once your morning routine has absorbed.
  2. Press it flat from the middle out, then put makeup over the top of it if you want to.
  3. It goes on before makeup and comes off with it; skincare goes underneath, never over.
  4. Replace it after several hours. Do not put one over sunscreen or moisturizer that is still wet; it will not hold.

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COSRX Master Patch Clear Fit

COSRX Master Patch Clear Fit

Payment and security

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How it works

A patch worn in daylight has a second job: it has to disappear. This is the thin, matte cut in COSRX's Master Patch range, made to sit under makeup rather than visibly on top of the skin. It goes on once the morning routine has absorbed and before makeup, on skin that is completely dry. The dressing still works the way any hydrocolloid does, taking up what the spot gives off while keeping hands off it. One patch per spot, replaced after several hours.

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We’re on gram!

Creators trying on authentic Korean skincare routines and products from us.

  • Rating a shelf of Dr. Althea products one by one.

    Jasmine Loo · YouTube

  • Two hydrating serums side by side, IUNIK and Dr. Althea.

    Kristin · YouTube

  • A walk through the Dr. Althea serum lineup and who each one suits.

    auraofmahmuda · YouTube

  • A blunt first take on the Dr. Althea range.

    Lexi Chang · YouTube

  • A first look at the viral 345 Relief Cream before buying.

    Shelley Nayak · YouTube

  • A first try of the Dr. Althea serum on camera.

    Hannah Ziad · YouTube

COSRX, Korean-market original

Ultra-thin daytime hydrocolloid patches, 18 ea, matte finish.

Verify your unit when it arrives

Verify your unit when it arrives

Korean-market stock with the original barcode and batch code intact, exactly as it left Korea.

COSRX verifies units itself. Find the verification page on cosrx.com and enter the batch number and expiration date printed on your unit. Read them off the package rather than from us, which is the point.

Source: COSRX FAQ

On the unit itself

  • The Korean-market barcode, unaltered from the retail package.
  • The manufacturer’s batch code, exactly as the maker printed it.

정품Genuine article, Korean-market stock

What professionals say

What professionals say

What skin-care professionals say about skin care, quoted from the medical sources linked beside each.

  • Your skin barrier is basically your outer layer of the skin.

    Melissa Piliang, MDDermatologist, Cleveland Clinic
  • Pretty much every step of a Korean skin care routine is going to have some component of hydration.

    Alok Vij, MDDermatologist, Cleveland Clinic

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