COSRX Acne Pimple Master Patch for skin with dark spots
Hydrocolloid Dressing
Cellulose Gum
Salicylic Acid
Melaleuca Alternifolia Tree Oil Leaf
Liquid ParaffinAverage
- AverageNormal Skin Fit
- AverageEffectiveness
- HighSafety
Works for skin with dark spots; other serums fit it better.
This fit is calculated for the concerns frequently associated with dark spots: hyperpigmentation, sun spots, and uneven skin tone. For scores and recommendations based on your full skin profile, including your 12D face scan results and any goals or preferences you have, please use the Lovi app.
Page built Nov 8, 2026How the Fit score works
Lovi Assistant explains
- Offers general skin protection for your normal skin due to the presence of Polyurethane Film and Cellulose Gum, which provide a physical barrier but lack targeted ingredients for pigmentation.
- The formula includes liquid paraffin for emollient action, offering moderate suitability for normal skin, though it could benefit from more humectants for optimal hydration.
- The product is safe for your normal skin, as it contains no harsh ingredients and poses no risk of irritation.
How to apply
- Apply this serum as part of your PM routine starting 3x/week and build up to daily use if your skin likes it.
- Place the serum after cleansing and toning, but before your moisturizer.
- Gently press 2-3 drops of the serum into your skin and wait a minute for it to absorb.
- Apply the serum on dry skin to help fade pigmentation effectively.
- Avoid the eye area and always use SPF 30+ during the day.
People Say
★4.5Overall rating based on 110.0k+ reviewsBased on a very large amount of data, this hydrocolloid patch is highly praised for its ability to extract impurities from whiteheads and prevent scarring by discouraging skin picking. It is very effective for surface-level pimples with visible heads, though it is generally reported as ineffective for deep, cystic, or hormonal acne that has not yet surfaced.
Highlights
Extracts gunk effectively Mostly Mentioned
- “Sucked the whitehead right out overnight.”
- “Woke up to see the patch white with absorbed gunk.”
- “Flattened my pimple completely by morning.”
- “Visibly pulls out pus and oil.”
- “Works like magic on ripe whiteheads.”
Prevents skin picking Often Mentioned
- “Stops me from touching and infecting the spot.”
- “Keeps my hands off my face.”
- “Great physical barrier against scratching.”
- “Helps me break the bad habit of popping.”
- “Protects the wound while it heals.”
Speeds up healing Often Mentioned
- “Reduces redness and inflammation significantly.”
- “Pimple healed in half the usual time.”
- “Prevents scabbing and scarring.”
- “Calms angry spots overnight.”
- “Spot was nearly gone after one use.”
Ineffective on cystic acne Often Mentioned
- “Did nothing for my deep, under-the-skin bumps.”
- “Useless on blind pimples without a head.”
- “Wasted a patch on hormonal cystic acne.”
- “Only works if the pimple is already open.”
- “No effect on early-stage, deep blemishes.”
Stays on well Sometimes Noted
- “Stayed on through a whole night of sleep.”
- “Survived a shower without peeling off.”
- “Adheres strongly even on oily skin.”
- “Doesn't budge once applied to dry skin.”
Not truly invisible Sometimes Noted
- “Too thick to wear under makeup.”
- “Visible shiny circle on my face.”
- “Obvious yellow tint against my skin.”
- “Okay for Zoom calls, but not for going out.”
- “Hard to conceal due to thickness.”
Adhesion issues Rarely Noted
- “Peels off if I toss and turn at night.”
- “Won't stick if I have any moisturizer on.”
- “Edges lift up after a few hours.”
- “Slips off easily on very oily areas.”
Sources: lovi.care, iherb.com, amazon.com, ulta.com, sokoglam.com, dermstore.com, and more
Questions and answers
How well does COSRX Acne Pimple Master Patch work for skin with dark spots?
This product works moderately well for your skin, providing a protective physical barrier and keeping the area soft, though it lacks targeted ingredients for dark spots. A treatment for this skin needs a blend of antioxidants, soothing components like niacinamide and propolis, and hydrating ingredients.
Which ingredients make this patch a good fit for skin with dark spots?
This patch works to protect your skin with physical barriers, but it lacks targeted ingredients for dark spots. A product of this type needs effective antioxidants, soothing ingredients like niacinamide or propolis, and hydrating components to truly fit this skin.
What does Hydrocolloid Dressing do for skin with dark spots?
Hydrocolloid Dressing is not suitable for skin with dark spots because it is designed to maintain a moist environment for wounds and protect against contamination. A product for dark spots needs brightening ingredients like vitamin C or niacinamide to help fade discoloration and even out skin tone.
What does Cellulose Gum do for skin with dark spots?
Cellulose gum is primarily used to thicken and stabilize skincare products rather than to directly treat dark spots. A product intended to help with dark spots on this type of skin needs brightening ingredients like vitamin C or niacinamide.
Where does this patch go in a skincare routine for skin with dark spots?
This patch goes in the evening routine as a treatment step, though dark spots need brightening ingredients and moisture-attracting humectants to truly help fade discoloration.
Can I use this patch with retinol, and in what order?
You can use this patch in your routine with retinol, applying it directly on blemishes after your retinol product has absorbed or as the final treatment step in the evening. The physical barrier is safe for your skin and unlikely to cause irritation, though skin with dark spots also benefits from brightening ingredients and hydrating components for optimal care.
How often should I use this patch?
This patch can be used as part of your evening routine, applying it when treating your skin. Skin with dark spots needs products that combine exfoliating acids and brightening ingredients to fade dark marks.
Can this patch clog pores, cause breakouts or purging for skin with dark spots?
This patch is unlikely to clog pores or cause breakouts on your skin with dark spots, as it contains no harsh ingredients and poses no risk of irritation. A product of this type needs targeted ingredients for pigmentation to help fade dark spots.
What the research says
Biocellulose and carboxymethyl cellulose wound dressings significantly reduced healing times and wound areas compared to normal saline dressings in epidermolysis bullosa skin wounds.
Journal of Wound Care, 2019Twice daily application of a multitargeted dermocosmetic cream provided comparable efficacy to benzoyl peroxide 5% gel in reducing inflammatory, non-inflammatory, and total lesions in 150 Caucasian subjects with mild-to-moderate acne over 56 days, while demonstrating superior skin tolerability.
Journal of Cosmetic Dermatology, 2024Daily application of hydrocolloid dressing completely prevented nasogastric tube-related pressure injuries, whereas skin care interventions showed no significant preventive effect compared to the control group in intensive care unit patients.
Journal of Tissue Viability, 2024Hydration of scars for 2 months resulted in significantly reduced itching, somewhat reduced pain, and increased pliability by 10% for both hydrocolloid dressing and moisturizer treatments in patients with keloids or hypertrophic scars, with no change in physical parameters.
Dermatologic Surgery, 1996Adjunctive hydrocolloid dressing with 0.1% mometasone furoate cream significantly increased treatment efficacy and cost-effectiveness compared to topical steroid alone in patients with moderate to severe lichen simplex chronicus.
Skin Health and Disease, 2023Cross-linked carboxymethyl cellulose hydrogel provided excellent correction of facial defects, high tolerance, and absence of side effects or migration issues in 84 healthy volunteers.
Clinical Interventions in Aging, 2010Polymeric bioadhesive microparticles composed of sodium carboxymethyl cellulose and Soluplus and loaded with 18beta-glycyrrhetinic acid form an in situ hydrogel upon contact with wound exudate, enabling controlled drug release that stimulates keratinocyte growth.
International Journal of Pharmaceutics, 2021Biodegradable wound dressings functionalized with silver nanoparticles showed >99% pathogen growth inhibition, bactericidal effects, free radical scavenging, reduced inflammatory response in macrophages, and accelerated wound healing in animals.
International Journal of Biological Macromolecules, 2022Cryotherapy with liquid nitrogen achieved a higher cure rate (39%) than salicylic acid (24%) and a wait-and-see approach (16%) for cutaneous warts at 13 weeks in primary care patients.
CMAJ, 2010A moisturizer containing licochalcone A, 1,2-decanediol, L-carnitine, and salicylic acid significantly reduced noninflammatory, inflammatory, and total acne lesion counts compared to a vehicle control in Thai patients during a 12-week maintenance phase.
BioMed Research International, 2020Treatment with 2% supramolecular salicylic acid hydrogel resulted in a regression and markedly improvement rate of 51.01% compared to 43.10% for Adapaline gel in patients with mild to moderate facial acne vulgaris, showing no significant difference in efficacy.
Journal of Cosmetic Dermatology, 2024A cream combining propolis, tea tree oil, and Aloe vera reduced erythema scars, acne severity index, and total lesion count better than erythromycin cream in sixty patients with mild to moderate acne vulgaris compared to placebo.
Clinical Pharmacology, 2018Tea tree oil nanoemulsion containing adapalene gel demonstrated significantly greater reductions in total, inflammatory, and non-inflammatory acne lesions as well as acne severity index compared to adapalene marketed gel in 100 patients with acne vulgaris over 12 weeks.
Archives of Dermatological Research, 2022Topical 5% tea tree oil gel significantly improved total acne lesions and acne severity index compared to placebo in 60 patients with mild to moderate acne vulgaris, showing 3.55 times and 5.75 times greater efficacy respectively.
Indian Journal of Dermatology, Venereology and Leprology, 2007Repeated application of concentrated water-in-oil emulsions over four weeks caused no skin irritation, positively affected skin properties, and delivered almost 50% of the applied fluorescein sodium, with isopropyl myristate showing superior penetration performance compared to liquid paraffin in healthy volunteers.
International Journal of Pharmaceutics, 2019
Why other serums fit skin with dark spots better
Niacinamide significantly decreased hyperpigmentation and increased skin lightness compared with vehicle alone after 4 weeks of use in women by inhibiting melanosome transfer.
The British Journal of Dermatology, 2002Treatment with 14% ferulic acid and 12% l-ascorbic acid significantly reduced pigmentation and erythema while improving hydration and elasticity in 20 women with photoaged skin, with neither acid proving definitively more effective overall though ascorbic acid showed slightly greater skin lightening.
Dermatologic Therapy, 2022
Ingredients
Cellulose Gum, Styrene Isoprene Styrene Block Copolymer, Polyisobutylene, Petroleum Resin, Polyurethane Film, Liquid Paraffin, Tetrakis Methane
Behind this fit score
Lovi calculates every fit score from the full ingredient list with brand-independent rules our dermatologists and cosmetic chemists build and review, and personalizes every pick with AI trained on the real results of millions of users. Lovi trains its fit score models on a proprietary dataset built from more than 10,000 expert-labeled products and more than 100,000 simulated examples, following an internally consistent methodology presented at Cosmoprof, AMWC, and Skin of Color Update.
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Dr. Sofía Perea Pérez, MD, MSc
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Specialist dermatologist, MBBS, MD, IFAAD
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Elina Nazarenko, MD
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Victoria Derkova, MS
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How does it fit your skin?
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