Allergen & irritant analysis
This sheet mask from COSRX lists 27 ingredients. AllerNote's analysis found no commonly-flagged contact allergens or irritants in the INCI list — though no formula is universally safe. No added fragrance, parabens, MI / MCI (isothiazolinones), formaldehyde-releasing preservatives, SLS / SLES sulfates were detected in the listed ingredients.
No commonly-flagged contact allergens or irritants were detected in the listed ingredients — though no formula is universally safe.
Not detected: added fragrance, parabens, MI / MCI (isothiazolinones), formaldehyde-releasing preservatives, SLS / SLES sulfates.
Generated from this product's ingredient list and AllerNote's allergen database — educational, not medical advice or a substitute for patch testing.
Benefits
Key Ingredients
- 1AntioxidantsShields skin from free radical damage.
- 2NiacinamideStrengthens, smooths, and brightens skin.
- 3ArbutinGently brightens and evens skin tone.
- 4EctoinProtects against environmental stress and aging.
Full Ingredient List
27INCI (full list, INCI order): water, butylene glycol, glycerin, propanediol, niacinamide, melaleuca alternifolia leaf extract, 1, 2-hexanediol, hexylene glycol, hydroxyacetophenone, hydroxyethylcellulose, arginine, allantoin, acrylates/c10-30 alkyl acrylate crosspolymer, dipotassium glycyrrhizate, xanthan gum, disodium edta, polyglyceryl-10 myristate, polyglyceryl-10 laurate, melaleuca alternifolia leaf oil, caprylic/capric triglyceride, ectoin, arbutin, asiaticoside, dextrin, asiatic acid, madecassic acid
Tap any ingredient to see details
Potential Concerns
- May Worsen EczemaMay worsen itching or irritation for eczema.
Frequently asked questions
Is AC Collection Blemish Care Sheet Mask fragrance-free?
No added fragrance or EU-labelled fragrance allergens were detected in AC Collection Blemish Care Sheet Mask's listed ingredients. "Not detected" isn't an absolute guarantee, but it's a good sign for fragrance-sensitive skin — confirm against the current pack and your own triggers.
Is AC Collection Blemish Care Sheet Mask paraben-free?
No parabens were detected in AC Collection Blemish Care Sheet Mask's listed ingredients. Worth keeping in perspective: parabens are among the least common cosmetic allergens, so "paraben-free" matters far less for reactive skin than avoiding fragrance or the preservative MI/MCI.
Is AC Collection Blemish Care Sheet Mask suitable for sensitive or allergy-prone skin?
No commonly-flagged allergens or irritants were detected in AC Collection Blemish Care Sheet Mask, which is encouraging for reactive skin — but "no known flags" isn't the same as "safe for everyone." Patch test before full use, and check it against your own allergen profile on AllerNote.

