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Clear Fit Master Patch

Clear Fit Master Patch

Product Description

The COSRX Clear Fit Master Patch is an ultra-thin, semi-transparent hydrocolloid spot patch built for invisible daytime wear. At just 0.12โ€“0.14mm thick with a matte gradient edge, it disappears into skin and sits flawlessly under makeup while absorbing exudate, shielding the blemish from bacteria and stopping you from picking. A fragrance-free, single-size (10mm) everyday patch from K-beauty bestseller COSRX.

๐Ÿ‡ฐ๐Ÿ‡ท K-Beauty ยท Made in South Korea
โœ” Fragrance-Free โœ” Ultra-Thin 0.12mm โœ” Invisible Under Makeup โœ” Hydrocolloid Dressing โœ” Cruelty-Free โœ” Hypoallergenic โœ” Pregnancy Safe โœ” Fungal-Acne Safe
Pregnancy Safe
Yes โœ”
Fungal Acne Safe
Yes โœ”
Comedogenic Rating
1/5
๐Ÿฉน
Count
18 Patches
๐Ÿ“
Patch Size
10mm Round
๐Ÿ“
Thickness
0.12โ€“0.14mm
๐Ÿงช
Type
Hydrocolloid
๐ŸŒ
Origin
South Korea

โœจ Texture & Feel

๐Ÿ’ง
Consistency
Ultra-thin film
๐Ÿ‘ƒ
Scent
Fragrance-free
โฑ๏ธ
Absorption
Adheres instantly
๐ŸŽฏ
Finish
Matte & invisible
๐Ÿ‘ป

Truly Invisible

A gradient, matte edge and 0.12mm profile blur into skin tone, so it stays unnoticeable even in daylight or under foundation.

๐Ÿ’ง

Absorbs Gunk Fast

Medical-grade hydrocolloid draws out fluid and pus from whiteheads, turning opaque white when the work is done.

๐Ÿ›ก๏ธ

Protective Barrier

Forms an airtight seal that blocks bacteria, dirt and outside irritants while preventing you from touching or picking.

๐Ÿ’„

Makeup-Friendly

Designed for daytime wear โ€” you can layer makeup gently on top without the patch lifting or peeling at the edges.

๐Ÿ›ก๏ธ Safety & Compatibility

โœ…
Pregnancy & Breastfeeding Safe

No retinoids, salicylic acid, hydroquinone or chemical sunscreens. It is a purely physical hydrocolloid dressing with no actives absorbed into the body.

โœ…
Fungal Acne (Malassezia) Safe

Contains no fatty acids, esters, polysorbates or ferments that feed malassezia. Mineral oil and the polymer adhesives do not trigger fungal acne.

โœ…
Non-Comedogenic

As a surface patch it sits on top of the blemish rather than penetrating pores; rated very low at 1/5 for pore-clogging risk.

โœ…
Fragrance-Free & Hypoallergenic

No added fragrance, alcohol, parabens, silicones or sulfates. COSRX markets these as suitable for sensitive, reactive skin.

๐Ÿค
Layering with Actives

Compatible alongside retinol, vitamin C, AHA/BHA โ€” just apply the patch to a clean, dry, product-free spot for best adhesion.

โš ๏ธ
Works Best on Open Whiteheads

Hydrocolloid needs fluid to absorb. It does little for closed, deep or cystic pimples that have not come to a head.

๐Ÿ”ฌ Ingredient Breakdown

๐Ÿงฝ Cellulose Gum Core Absorbent Proven

The water-loving heart of the hydrocolloid system. This plant-derived polymer (carboxymethylcellulose) swells as it draws fluid out of the blemish, which is why the patch turns cloudy white as it works.

  • Function: Emulsion stabilizer and absorbent gelling agent that pulls exudate from the spot.
  • Safety: Considered hypoallergenic and non-toxic; widely used in cosmetics, food and medical dressings.
โœ…
Creates the moist healing environment that helps blemishes resolve faster with less scarring.

๐ŸŽž๏ธ Polyurethane Film (Polyurethane-4) Backing Layer Proven

The thin, flexible, semi-transparent top layer that gives the patch its barely-there 0.12mm profile. It seals the spot from the outside world while flexing with facial movement.

  • Function: Breathable film-forming backing that protects the wound and blocks bacteria and dirt.
  • Safety: Inert, non-absorbed polymer commonly used in medical wound dressings.

๐Ÿ”— Styrene/Isoprene Copolymer Adhesive Proven

A rubbery thermoplastic elastomer that gives the patch its strong yet gentle skin grip, helping it stay sealed for several hours of daytime wear.

  • Function: Pressure-sensitive adhesive base that keeps the patch flush against skin.
  • Safety: Non-absorbed structural polymer; not a known irritant in patch form.

๐Ÿงท Polyisobutene Binder Proven

A synthetic film-forming polymer that binds the adhesive matrix together and improves how cleanly the patch peels off without pulling at skin.

  • Function: Film former and binding agent for the adhesive layer.
  • Safety: Not absorbed by the skin; commonly used as a tackifier in patches and balms.

๐Ÿชจ Hydrogenated Petroleum Resin (Red Petrolatum) Tackifier Proven

A resin that boosts the stickiness and seal of the adhesive system so the patch holds firm against sweat and movement throughout the day.

  • Function: Tackifying / occlusive component that strengthens the airtight seal.
  • Safety: Inert structural ingredient that stays on the surface of the patch.

๐Ÿ’ง Paraffinum Liquidum (Mineral Oil) Emollient Proven

Highly refined mineral oil that plasticizes the patch and creates an occlusive layer, locking moisture in around the blemish for a softer, calmer heal.

  • Function: Emollient and occlusive that traps hydration and keeps the dressing pliable.
  • Safety: Comedogenicity 0โ€“2, irritancy 0; the scientific consensus is that cosmetic-grade mineral oil is safe and non-irritating.

๐ŸŒฟ Tetrahydrodiferuloylmethane (Tetrahydrocurcumin) Antioxidant Promising

A colorless derivative of curcumin (from turmeric) included as an antioxidant to help shield the blemish area from free-radical damage during healing.

  • Function: Antioxidant that helps defend skin against oxidative stress.
  • Note: This name does not follow the strict INCI standard, but the ingredient is recognized as a turmeric-derived antioxidant.
โš ๏ธ
Present in a tiny structural amount within the patch โ€” treat it as a bonus, not a primary acne active.

7 ingredients

Polyurethane Film, Cellulose Gum, Styrene/Isoprene Copolymer, Polyisobutene, Hydrogenated Petroleum Resin, Paraffinum Liquidum, Tetrahydrodiferuloylmethane.

FREE FROM: Fragrance, Essential Oils, Parabens, Sulfates, Silicones, Drying Alcohols, Salicylic Acid, Tea Tree Oil, Common Allergens, Animal Testing.

๐Ÿ”„ Where It Fits in Your Routine

1
Cleanser
2
Dry Skin
3
Apply Patch
4
Toner / Serum
5
Moisturizer
6
Makeup / SPF

Apply directly onto clean, dry skin before any leave-on products so it adheres firmly, then carry on with the rest of your routine and makeup around it.

๐Ÿ“ How to Use

1

Cleanse & Dry

Wash the blemish and surrounding area, then make sure the skin is completely dry. Do not apply skincare to the spot first.

2

Peel & Place

Lift one patch from the film and press it directly over the blemish so it fully covers the spot.

3

Wear All Day

Leave on for up to about 8 hours. Apply the rest of your skincare and makeup gently around it.

4

Replace When White

Swap for a fresh patch once it turns opaque white or stops adhering firmly. Repeat until the blemish settles.

๐Ÿ‘ค Who Is It For?

โœ… Perfect for you if:

  • You want an invisible spot patch to wear during the day or under makeup
  • You're a chronic picker who needs a physical barrier over blemishes
  • You get whiteheads or surfaced pimples that need oozing fluid absorbed
  • You have sensitive or fragrance-sensitive skin
  • You want a low-cost, fuss-free, single-step treatment

โŒ Consider alternatives if:

  • You mostly battle deep cystic or under-the-skin blemishes with no head
  • You need an actives-loaded patch with salicylic acid or tea tree oil
  • You want multiple patch sizes for larger spots (this is one 10mm size)
  • You're treating widespread acne rather than the occasional spot
  • You want overnight thickness โ€” try the Acne Pimple Master Patch instead

๐ŸŽฏ Skin Type Compatibility

Oily Skin โ˜…โ˜…โ˜…โ˜…โ˜… Excellent

Absorbs oil and exudate, and the matte finish helps it stay put even on shinier skin.

Acne-Prone โ˜…โ˜…โ˜…โ˜…โ˜… Excellent

Non-comedogenic and fungal-acne safe; ideal for spot-treating surfaced breakouts.

Combination โ˜…โ˜…โ˜…โ˜…โ˜… Excellent

Targets individual spots without affecting the rest of your routine across zones.

Sensitive Skin โ˜…โ˜…โ˜…โ˜…โ˜† Good

Fragrance-free and hypoallergenic, though very reactive skin should patch test the adhesive first.

Dry Skin โ˜…โ˜…โ˜…โ˜…โ˜† Good

Works fine on dry skin but is most effective on spots that are actively weeping fluid.

๐Ÿ“ˆ Results Timeline

Immediately

Protected & Concealed

The spot is instantly covered, shielded from bacteria and your fingers, and visually flattened under the matte patch.

95% noticed
6โ€“8 Hours

Fluid Absorbed

The patch turns opaque white as it draws out exudate, and the blemish typically looks smaller and less angry.

80% noticed
1โ€“2 Days

Visibly Calmer

With consistent patch swaps, redness and swelling on surfaced pimples noticeably subside and healing speeds up.

70% noticed
3+ Days

Reduced Scarring

By discouraging picking and keeping the area moist and clean, the patch helps minimize the risk of post-acne marks.

60% noticed

โญ Ratings by Platform

๐Ÿ’… Ulta
โ˜…โ˜…โ˜…โ˜…ยฝ 4.5
Rating
38+
Reviews
โš ๏ธ Main complaint: Still slightly visible under bright light and sheer makeup.
โœจ Cult Beauty
โ˜…โ˜…โ˜…โ˜…ยฝ 4.5
Rating
122+
Reviews
โš ๏ธ Main complaint: Only 18 patches per pack feels small for the price.
๐ŸŒฟ iHerb
โ˜…โ˜…โ˜…โ˜…ยฝ 4.6
Rating
100+
Reviews
โš ๏ธ Main complaint: Single 10mm size is too small for larger blemishes.
๐Ÿ›’ Amazon
โ˜…โ˜…โ˜…โ˜…ยฝ 4.5
Rating
1,000+
Reviews
โš ๏ธ Main complaint: A small number of sensitive-skin users reported irritation from the adhesive.

โš–๏ธ Pros & Cons

โœ… Praised

  • Genuinely thin and nearly invisible, even in daylight
  • Strong, reliable adhesion that lasts all day
  • Wears well under makeup without lifting
  • Fragrance-free and gentle for most users
  • Affordable and a long-time COSRX bestseller
  • Stops picking and visibly shrinks surfaced spots fast

โŒ Criticized

  • Only 18 patches per pack feels limited for the price
  • Single 10mm size doesn't suit larger blemishes
  • Not very effective on deep, headless cystic spots
  • Edges can still catch the light under sheer makeup
  • Rare reports of adhesive irritation on reactive skin

๐Ÿ’ฐ Budget-Friendly Alternatives (Dupes)

85% Match
Nexcare Acne Absorbing Covers
~$8.00 Budget Pick

Drugstore hydrocolloid patches in assorted sizes. Same fluid-absorbing tech but thicker and more visible, so better for nighttime than under makeup.

75% Match
Garnier SkinActive Pimple Patches
~$5.00 Budget Pick

Very affordable hydrocolloid spot dots widely available in drugstores. Effective basics, but less refined and noticeably thicker than the Clear Fit.

78% Match
The INKEY List Invisible Pimple Patches
~$10.00 Similar Tier

Thin, near-invisible daytime patches at a similar concept and price-per-pack. Comparable wear, with multiple sizes in the pack.

๐Ÿ”„ Comparison with Competitors

Hero Mighty Patch Invisible+

~$14.00
Best Use Daytime / under makeup
Thickness Very thin, matte
Count / Sizes 39 patches ยท 2 sizes
Added Actives None (pure hydrocolloid)
Price / Patch ~$0.36

COSRX Acne Pimple Master Patch

~$6.00
Best Use Overnight / intensive
Thickness Thicker, more visible
Count / Sizes 24 patches ยท 3 sizes
Added Actives None (pure hydrocolloid)
Price / Patch ~$0.25

Starface Hydro-Star

~$9.78
Best Use Statement / overnight
Thickness Thicker, star-shaped, visible
Count / Sizes 32 patches ยท 1 shape
Added Actives None (pure hydrocolloid)
Price / Patch ~$0.31

๐Ÿ“ฆ Storage & Shelf Life

๐Ÿ“…
Period After Opening (PAO)

Use within 12 months of opening the pouch; check the printed expiry date on the package.

๐Ÿ 
Storage

Store in a cool, dry place away from direct sunlight and humidity. Keep the pouch sealed between uses.

๐Ÿ“ฆ
Packaging

Flat resealable pouch with patches on a peel-off plastic film backing.

โœˆ๏ธ
Travel Friendly

Yes โ€” lightweight, flat, non-liquid and TSA-friendly for carry-on.

โ“ Frequently Asked Questions

Yes. It contains no retinoids, salicylic acid, hydroquinone or chemical sunscreens โ€” it's a purely physical hydrocolloid dressing with no actives absorbed into the body, which makes it one of the safest acne tools during pregnancy and breastfeeding. As always, check with your doctor if you have concerns.

Yes. The formula has no fatty acids, esters, polysorbates, oils or ferments that feed malassezia yeast. The mineral oil and polymer adhesives used here do not trigger fungal acne, so it's considered fungal-acne safe.

Yes. Since it's an inert physical patch, there are no ingredient conflicts. Just apply it to clean, dry skin before your other products so it sticks well, then use your retinol, vitamin C or exfoliating acids around the patch as usual.

It suits all skin types but shines for oily, combination and acne-prone skin dealing with surfaced whiteheads. It's fragrance-free and generally gentle for sensitive skin, though very reactive skin should patch-test the adhesive first.

You'll see immediate protection and a flatter, concealed spot the moment you apply it. After 6โ€“8 hours the patch turns white as it absorbs fluid, and surfaced pimples often look calmer within 1โ€“2 days of consistent use.

Apply it first, onto freshly cleansed and fully dry skin, before any leave-on products. Then layer your toner, serum, moisturizer, SPF and makeup gently around it. This order gives the best adhesion and longest wear.

No. With a comedogenic rating of about 1/5, it's considered non-comedogenic. It sits on the surface of the blemish rather than soaking into pores, and actually helps clear the spot rather than clog it.

Use within about 12 months of opening the pouch and before the printed expiry date. Keep the pouch sealed and stored in a cool, dry place to maintain adhesion and hygiene.

โ˜…โ˜…โ˜…โ˜…ยฝ
4.5 out of 5

Verdict: The COSRX Clear Fit Master Patch is one of the best invisible daytime spot patches you can buy. Its ultra-thin, matte, fragrance-free hydrocolloid disappears under makeup, sticks reliably all day and is pregnancy- and fungal-acne safe. The trade-offs are real but minor โ€” just 18 patches in a single 10mm size, and limited power against deep cystic spots. For surfaced whiteheads and everyday discreet wear, it's an affordable, dermatologist-friendly staple that earns its bestseller status.

Product Overview

question
lightbulb What are Quick Product Notes?

Quick product notes are a great way to check if a product is free from commonly avoided ingredients by skincare enthusiasts. These preferences come about for different reasons depending on the ingredient such as personal experiences, sensitivities, health preferences & etc.

muscle Pro Tip Alert!

Just because a product is not free from a common preference does not mean it's a bad product! You can make a personal decision whether or not you want to use a product that contains these ingredients or not - click the labels of the preference to read more about them.

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Quick Product Notes

Click on icons for more information
question
lightbulb What are Notable Effects & Ingredients?

Ever used a product that promised a certain effect but provided no results? It might not have contained any notable ingredients that could have been responsible for that promised effect. It doesn't matter what the marketing or packaging ยซpromisesยป it can do, if it doesn't contain anything that can help - then the likelihood of it helping is low.

We help you identify key notable ingredients that have been shown to help with effects such as acne-fighting, brightening, UV-protection, wound healing & anti-aging to help you achieve your skincare goals smarter. Please note that different notable ingredients have varying levels of research behind them, some are extremely well proven yet some have mixed research in their efficacy.

muscle Pro Tip Alert!

Just because a product doesn't contain any notable ingredients doesn't mean it's bad. And a product with notable ingredients (or even many) doesn't necessarily guarantee the efficacy of the product performing these effects either. There are other factors such as ingredient quality, concentration and formulation that will ultimately determine this.

Be smart and use this as just a starting point for you to make more informed and smarter choices and compare it with reviews to see if the product is right for you

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Notable Effects & Ingredients

question
lightbulb What are Ingredients Related to Skin Type?

Why are some products great for some people and horrible for others? Well everyone has different skin types and different reactions to the same ingredients.

We've identified a range of ingredients that are commonly regarded as potentially good or bad for those with Dry, Oily/Acne-Prone or Sensitive skin.

muscle Pro Tip Alert!

A product that contains good or bad ingredients for your skin type doesn't always flat out make the entire product good or bad for your skin. There are other factors such as ingredient quality, concentration and formulation that will ultimately determine your skins reaction.

One of the best ways to use this section is to troubleshoot products you've had bad experiences with in the past. Check if it contains any of the marked ingredients to point out suspect ingredients to avoid in the future!

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Ingredients Related to Skin Types

Click on icons for more information
dry-skin Dry Skin
oily-skin Oily/Acne-Prone Skin
sensitive-skin Sensitive Skin
question
lightbulb What is the Ingredient Safety Breakdown?

Ingredient Safety Breakdown refers to the percentage % of ingredients in different risk categories as classified by EWG (Environment Working Group) if they are available. There are almost endless cosmetic ingredients and they are one of the few organisations globally that have assigned ratings to a lot of the more commonly used ingredients which is why we reference them.

muscle Pro Tip Alert!

EWG is seen by many to be more on the alarmist side in their assignment of health ratings resulting in rating ingredients as riskier than they actually are. We recommend using this a reference point rather than a strict guide of ingredient safety and to always do further research if into ingredients that you may find suspect.

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Ingredient Safety Breakdown

EWG Health Ratings
Low risk
Medium risk
High risk
Unknown risk
57% 42%

Product ingredient list

Showing first 5 of 7 ingredients
EWG CIR Ingredient Name & Cosmetic Functions Notes
0 Unknown
Polyurethane-4
1 A
Cellulose Gum
Masking, Fragrance, Viscosity Controlling, Viscosity Increasing Agent, Emulsion Stabilising, Binding Agent, Binding, Film Forming
1 A
Styrene/Isoprene Copolymer
Film Forming, Opacifying
1 A
Polyisobutene
Viscosity Controlling, Viscosity Increasing Agent, Binding Agent, Binding, Film Forming
0 Unknown
Red Petrolatum
Emollient, Moisturising, Uv Absorber
VIEW ALL INGREDIENTS