COSRX AC Collection Acne Patch

COSRX

AC Collection Acne Patch

face body patch

Added Last edited

Fit by skin type

General, ingredient-based — not your personalized match.

Dry
69%
Combination (dry)
69%
Balanced
99%
Combination (oily)
71%
Oily
71%

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7
Ingredients
2
Benefits
0
Actives
Find Dupes

The COSRX AC Collection Acne Patch is a highly adhesive oval hydrocolloid patch that helps to treat and reduce the appearance of acne. The border of each patch is tapered to ensure that it will strongly and easily adhere to any curved areas of the face, such as the jawline, hairline, and even the body. Each patch is also designed to calm and soothe with centella asiatica.

Key Insights

Benefits

2
Anti-Aging
Soothing

Risks

2
Microplastic
Sulfate

About AC Collection Acne Patch

Overview

AC Collection Acne Patch is a cushioning patch from COSRX, a brand based in Korea. The ingredient list runs to 7 ingredients, each broken down in full below.

Texture and finish

By its ingredient list the formula reads as moderately cushioned — emollient enough to feel like a cream, without the heaviest occlusives near the top. There is very little humectant content, so this is not the step in a routine that adds water to skin.

Who it suits

On richness alone it suits Balanced skin best, and is the least natural fit for Dry, Combination (dry), Combination (oily) and Oily skin. A few ingredients carry irritation flags, so reactive skin should patch test before using it on the whole face.

What it does not target

The formula contributes little or nothing on hydration, barrier support, antioxidant protection and oil control. That is not a fault — most products are not meant to do everything — but if one of those is your priority, this is not the product that will address it.

What is not in it

Reading the full list, the formula is fragrance-free, essential-oil-free, no drying alcohol, paraben-free, silicone-free and sulfate-free. Those claims come from the ingredient list itself, not from the packaging.

Where it fits in a routine

Use it in the evening. In a routine it goes on affected areas only, after serums. Keep it to the spot itself — treating clear skin buys irritation, not results.

This summary is generated from the product's ingredient list. It is not a review, it is not the brand's own marketing claims, and it does not replace advice from a dermatologist.

Pros and cons

Drawn purely from the ingredient list

Pros

  • No fragrance or declared allergens
  • No essential oils
  • No drying alcohol
  • Silicone-free
  • No recognised malassezia (fungal acne) triggers

Things to know

  • Contains a solid synthetic polymer (microplastic)

Which skin types it suits

Scored on how rich or light the formula reads from its INCI order.

Suitable for

  • Balanced skin

Less suitable for

  • Dry skin
  • Combination (dry) skin
  • Combination (oily) skin
  • Oily skin

Sensitive skin

A few ingredients here carry irritation flags. Reactive skin should patch test on the jawline for a few days before using it on the whole face.

Skin concerns

Based on the curated benefits documented for this product's ingredients.

Helps with

  • Anti-Aging 1 ingredient

    Boosts collagen and cell turnover to reduce fine lines and wrinkles

  • Soothing 1 ingredient

    Calms redness, irritation, and inflammation for sensitive skin

Does not target

Anti-Acne Blackhead Reducing Dark Spot Fading Evens Skin Tone Hydration Oil Control Pore Minimizer Smooths Bumpy Skin

None of the ingredients in this formula are associated with these benefits. This is not unusual, as most products are designed to target a limited number of concerns.

Key ingredients

The actives, UV filters and benefit-carrying ingredients in this formula, in the order they are listed.

6th on the list, which puts it at an estimated 2–10% of the formula.

Centella Asiatica Extract is the extract of the whole plant Hydrocotyl, Centella asiatica L., Apiaceae

Soothing Anti-Aging

Formula analysis

Each axis is scored from the ingredients present and how high up the list they sit.

Hydration None

Ingredients that pull and hold water in the upper layers of skin

Barrier support None

Lipids and repair signals that support skin barrier integrity

Antioxidant support None

Ingredients that mop up free radicals from UV and pollution

Oil control None

Ingredients that moderate sebum or absorb shine

Brightening None

Ingredients that act on uneven tone and post-inflammatory marks

Soothing Low

Ingredients aimed at visible redness and reactivity

Cell renewal None

Retinoids, acids and enzymes that speed surface turnover

Firmness signalling None

Peptides and growth factors that signal for collagen support

What is and is not in it

Read from the full ingredient list. A brand's own claim may differ.

Free from

  • Fragrance-free
  • Essential-oil-free
  • No drying alcohol
  • Paraben-free
  • Silicone-free
  • Sulfate-free
  • Dye-free
  • Oil-free
  • No animal-derived ingredients

Contains

  • Microplastics

    Polybutene, Polyurethane Crosspolymer-2

What to layer it with

Judged by the same curated rules our routine checker uses. It reads the ingredients, not the label.

Compatible with

  • Vitamin C (L-ascorbic acid)
  • Retinoids (retinol, retinal)
  • AHAs (glycolic, lactic)
  • BHA (salicylic acid)
  • PHAs (gluconolactone)
  • Benzoyl peroxide
  • Azelaic acid
  • Copper peptides
  • Bakuchiol
  • Niacinamide
  • Hyaluronic acid
  • Ceramides
  • Signal peptides
  • Panthenol
  • Sunscreen

Nothing in this formula belongs to a group our rules can put in conflict, so it layers freely. Order still matters — thinnest texture first.

Where it fits in a routine

Evening
  1. Cleanse
  2. Toning
  3. Spot treat
  4. Moisturise

This product is the "Spot treat" step.

  • Keep it to the spot itself — treating clear skin buys irritation, not results.

Safety and suitability

Flags to check, not verdicts. None of this is medical advice — if you are pregnant, breastfeeding or treating a skin condition, ask a doctor.

Pregnancy and breastfeeding
Nothing in this formula is on the standard pregnancy-caution list. That is not clearance — ask your doctor about anything you use daily.
Fungal acne (malassezia)
No ingredient here is a recognised food source for malassezia.
Sensitive and reactive skin
A few ingredients here carry irritation flags. Reactive skin should patch test on the jawline for a few days before using it on the whole face.
Recorded ingredient risks
Microplastic, Sulfate

Ingredients by function

Most ingredients do more than one job, so these counts add up to more than the 7 ingredients on the label.

4
Occlusive

Forms a film that slows water loss

3
Texture agent

Sets the thickness, spread and stability of the formula

1
Soothing

Calms visible redness and irritation

1
Plant extract

Botanical material, usually for antioxidants or scent

1
Surfactant

Lifts oil and dirt, or holds oil and water together

Ingredient breakdown

Every ingredient on the label, in order, with what it does and roughly how much of it is likely to be there.

Estimated level
10–40%
Confidence
Low — inferred from list position alone

1st on the list, which puts it at an estimated 10–40% of the formula.

Sulfated Sodium Chondroitin Sulfate is the product of the sulfation of Sodium Chondroitin Sulfate.

Sulfate
2 Polyisobutene Occlusive
Estimated level
5–20%
Confidence
Low — inferred from list position alone
Roles
Occlusive, Texture agent

2nd on the list, which puts it at an estimated 5–20% of the formula.

Homopolymer of 2-methyl-1 propene

3 Rosin Occlusive
Estimated level
5–20%
Confidence
Low — inferred from list position alone
Roles
Occlusive, Texture agent

3rd on the list, which puts it at an estimated 5–20% of the formula.

Colophonium (EU),Colophony,Gum Rosin,Rosin Gum,WW Wood Rosin

4 Polybutene Texture agent
Estimated level
2–10%
Confidence
Low — inferred from list position alone
Roles
Texture agent

4th on the list, which puts it at an estimated 2–10% of the formula.

Polybutene is the polymer formed by the polymerization of a mixture of iso- and normal butenes.

Microplastic
Estimated level
2–10%
Confidence
Low — inferred from list position alone
Roles
Occlusive

5th on the list, which puts it at an estimated 2–10% of the formula.

Hydrogenated Mineral Oil is the end product of the controlled hydrogenation of Mineral Oil.

Estimated level
2–10%
Confidence
Low — inferred from list position alone
Roles
Soothing, Surfactant, Plant extract

6th on the list, which puts it at an estimated 2–10% of the formula.

Centella Asiatica Extract is the extract of the whole plant Hydrocotyl, Centella asiatica L., Apiaceae

Soothing Anti-Aging
6 scientific references
  • Phytomedicine, April 2018, pages 110–119
  • Clinical, Cosmetic, and Investigational Dermatology, August 2017, pages 311–315
  • Indian Journal of Pharmaceutical Sciences, Jan-Feb 2016, pages 27–33
  • Postepy Dermatologii I, February 2013, pages 46–49
  • Indian Journal of Pharmaceutical Sciences, 2010, pages 546–556
  • Scientific Reports, June 2021, ePublication
Estimated level
1–5%
Confidence
Low — inferred from list position alone
Roles
Occlusive

7th on the list, which puts it at an estimated 1–5% of the formula.

Polyurethane Crosspolymer-2 is a complex, highly-crosslinked polymer prepared by reacting the polymeric reaction product of guanazole, melamine, glyoxal, glyoxylic acid, and 2,2-dimethoxyacetaldehyde with trimethyolpropane/xylylene diisocyanate crosspolymer and Cellulose Gum.

Microplastic

Frequently asked questions

What ingredients are in AC Collection Acne Patch?

SULFATED SODIUM CHONDROITIN SULFATE, POLYISOBUTENE, ROSIN, POLYBUTENE, HYDROGENATED MINERAL OIL, CENTELLA ASIATICA EXTRACT, POLYURETHANE CROSSPOLYMER-2.

How do I use AC Collection Acne Patch?

Cleanse the area around the troubled spot. Use after an exfoliator or before the toner step. Select a bigger size patch than the spot. Attach the patch to dry skin.

What skin types is AC Collection Acne Patch good for?

Judged on how rich the formula reads from its ingredient list, it suits Balanced skin best. It is the least natural fit for Dry, Combination (dry), Combination (oily), Oily skin.

Is AC Collection Acne Patch good for sensitive skin?

Some ingredients here carry irritation flags, so sensitive skin should patch test on the jawline for a few days before applying it to the whole face.

Is AC Collection Acne Patch fungal acne safe?

No ingredient in this formula is a recognised food source for malassezia, the yeast behind fungal acne.

Can I use AC Collection Acne Patch while pregnant?

Nothing in this formula is on the standard pregnancy-caution list. That is not medical clearance — check anything you use daily with your doctor or midwife.

Is AC Collection Acne Patch fragrance free?

Yes. Reading the full ingredient list, this formula is fragrance-free.

Does AC Collection Acne Patch contain alcohol?

No. Reading the full ingredient list, this formula is no drying alcohol.

Is AC Collection Acne Patch silicone free?

Yes. Reading the full ingredient list, this formula is silicone-free.

Does AC Collection Acne Patch contain essential oils?

No. Reading the full ingredient list, this formula is essential-oil-free.

Is AC Collection Acne Patch paraben free?

Yes. Reading the full ingredient list, this formula is paraben-free.

What can I layer with AC Collection Acne Patch?

It layers well with Vitamin C (L-ascorbic acid), Retinoids (retinol, retinal), AHAs (glycolic, lactic), BHA (salicylic acid), PHAs (gluconolactone), Benzoyl peroxide.

When should I apply AC Collection Acne Patch?

Use it in the evening, on affected areas only, after serums.

How many ingredients does AC Collection Acne Patch have?

It lists 7 ingredients, of which 0 are recorded as actives.

Who makes AC Collection Acne Patch?

COSRX, a brand based in Korea.

Brand
COSRX
Country
Korea

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