Why is the bundle discounted, and when should the products be used?

This is a reduced-price, short-dated clearance bundle. The patches are marked to expire June 3, 2027, and the AHA liquid July 11, 2027. Use both before their marked dates. The bundle is final sale and cannot be returned or exchanged.

Is the patch noticeable, and can makeup be worn over it?

The patch has an ultra-thin, gradient shape and matte finish designed to look barely noticeable during the day. Applying makeup over it makes it even less visible.

Which concerns and skin types is the AHA liquid intended for?

It’s intended for dull or rough skin, uneven texture, tiny white bumps and whiteheads. Dry and combination skin are listed among its targets, and it’s best suited to experienced exfoliant users. Sensitive skin should introduce it gradually because irritation may occur.

What are the key ingredients or materials in each step?

The patch uses hydrocolloid material. The liquid contains 7% glycolic acid and identifies niacinamide as a key ingredient; apple fruit water is first in its ingredient list.

Can I use the AHA liquid with retinol, vitamin C or other exfoliating acids?

Avoid using it concurrently with other AHAs or BHAs, retinol or vitamin C.

Should I use the AHA liquid and patch on the same blemish at the same time?

No. Keep the AHA liquid and patch off the same spot when using them at the same time.

Free standard shipping to eligible countries from €71

Bundle

Blemish Duo

What it is: A two-product skincare set with AHA 7 Whitehead Power Liquid and 18 ultra-thin Clear Fit Master Patches for surface exfoliation and targeted spot coverage.

Exfoliating liquid + spot patches
7% glycolic acid exfoliation
Ultra-thin matte patch finish
Less visible under makeup

Blemish Duo

18 patches/1ea ·€10.98

Exfoliating liquid + spot patches

7% glycolic acid exfoliation

Ultra-thin matte patch finish

Less visible under makeup

Main active: Glycolic Acid
Intensity: Advanced

PRODUCT DETAILS

Two complementary steps, one thoughtful set. The AHA 7 Whitehead Power Liquid pairs with 18 Clear Fit Master Patches, giving you a surface-exfoliation step for uneven texture and a low-profile way to cover individual blemishes.

At the exfoliating step, the 7% glycolic acid liquid helps remove dead-skin buildup and improve the look of dull, rough or uneven texture and whiteheads. Niacinamide adds another reason to reach for it, supporting a more radiant look with less visible marks from spots. The liquid is best suited to experienced acid users, with dry and combination skin among its listed fits.

For individual blemishes, the ultra-thin patches have a gradient shape and matte finish. Their hydrocolloid material absorbs fluid from the covered spot, while each patch stays barely noticeable in the daytime and even less visible under makeup. It’s a discreet little backup when you want coverage without drawing attention to it.

This is a short-dated clearance bundle: the patches are marked to expire June 3, 2027, and the liquid July 11, 2027. Use both before their marked dates. The set is final sale and cannot be returned or exchanged.

Learn more

GOES WELL WITH

1+1 Toning C Vita Shot Ampoule€26.88

100 Reedle Shot Stick Pouch€7.88

1025 Dokdo Sleeping Pack€14.98

1025 Dokdo Cream€23.00

100 Collagen Reedle Shot Stick Pouch€8.88

100 PRO CICA Reedle Shot Stick Pouches€9.00

100 RETI-A Reedle Shot€9.00

1025 Dokdo Pad€18.99

Two complementary steps pair surface exfoliation with discreet coverage for individual blemishes.

Smoother-looking texture
Whitehead-focused exfoliation
Discreet spot coverage
Less visible post-spot marks

Key Ingredients

A translucent ivory ribbon-like sculpture with clear droplets rests on a warm peach surface, casting a soft directional shadow.

Glycolic Acid

Glycolic acid is an AHA that exfoliates surface buildup to help rough, dull-looking skin appear smoother and brighter.

A pale blush, translucent gel-like folded form with a clear droplet, photographed on a seamless blush surface with soft studio light and a grounding shadow.

Hydrocolloid

The gel-forming layer that absorbs surface fluid and keeps a spot smoothly covered.

Niacinamide

Helps visibly brighten uneven tone and support the skin barrier.

Model touching her cheek where a small clear patch is applied.

Concerns & Benefits

Your Concerns

1
Uneven Texture
For dull, rough-looking skin that could use a smoother, more even-looking surface.
2
Blackheads Whiteheads
For routines focused on tiny white bumps and visible whiteheads.

How To Use

1After cleansing, soak a cotton pad with the AHA liquid and swipe a thin layer over your skin, avoiding the eye and mouth areas.
2Start with the liquid 2–3 times per week and increase gradually as your skin adjusts; sensitive skin should introduce it gradually.
3Follow the liquid with a soothing moisturizer. During the day, finish with broad-spectrum sunscreen rated SPF 30 or higher.
4Attach a patch to clean, dry skin before applying other skincare products, and do not use the AHA liquid on the same spot at the same time.
5Keep the patch on until it swells and turns white from absorbed fluid, then replace it. If you wear makeup, it can be applied over the patch. Note: Avoid using the AHA liquid concurrently with other AHAs or BHAs, retinol or vitamin C. Avoid AHA use during pregnancy or breastfeeding.

Frequently asked questions

What exactly is included in this bundle?

You’ll receive COSRX AHA 7 Whitehead Power Liquid in a 100 ml bottle and 18 COSRX Clear Fit Master Patches.

Customer reviews

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100 PRO CICA Reedle Shot Stick Pouches

Daily texture care with soothing hydration, one travel-friendly pouch at a time.

2 ml × 10 pouches€9.00

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Bundle COSRX Blemish Duo | AHA Liquid + Patches

Bundle

Blemish Duo

What it is: A two-product skincare set with AHA 7 Whitehead Power Liquid and 18 ultra-thin Clear Fit Master Patches for surface exfoliation and targeted spot coverage.

Exfoliating liquid + spot patches
7% glycolic acid exfoliation
Ultra-thin matte patch finish
Less visible under makeup

Blemish Duo

18 patches/1ea ·€10.98

Exfoliating liquid + spot patches

7% glycolic acid exfoliation

Ultra-thin matte patch finish

Less visible under makeup

Main active: Glycolic Acid
Intensity: Advanced

PRODUCT DETAILS

Learn more

GOES WELL WITH

1+1 Toning C Vita Shot Ampoule€26.88

100 Reedle Shot Stick Pouch€7.88

1025 Dokdo Sleeping Pack€14.98

1025 Dokdo Cream€23.00

100 Collagen Reedle Shot Stick Pouch€8.88

100 PRO CICA Reedle Shot Stick Pouches€9.00

100 RETI-A Reedle Shot€9.00

1025 Dokdo Pad€18.99

Two complementary steps pair surface exfoliation with discreet coverage for individual blemishes.

Smoother-looking texture
Whitehead-focused exfoliation
Discreet spot coverage
Less visible post-spot marks