DEWYTREE AC DEEP BLEMISH CALMING MASK

What is this product?

DEWYTREE AC Deep Blemish Calming Mask is a 10-sheet microfiber sheet mask filed as a whitening functional cosmetic, aimed at post-blemish marks and heat-flushed skin. Its 35 entry essence is water and humectant led, with niacinamide fifth, ascorbyl glucoside, glutathione and lime extract for tone, centella extract, and peppermint oil and leaf extract for a cooling feel. The brand cites two-week tests on 20 adults for marks and tone and an immediate heat soothing test, but its headline percentages do not match the bars printed beside them. There is no fragrance entry; rosemary and peppermint oils are present, so reactive skin should take care.

What makes it different?

Set against the heat-soothing mask in the same AC Deep line, it is filed for whitening and adds niacinamide, ascorbyl glucoside, glutathione and lime extract to a shared peppermint and centella cooling base; its own bar charts show small two-week changes in marks and tone.

What is in it?

The full ingredient list as the brand publishes it, in the printed order. Each name links to what we know about that ingredient.

This brand publishes its ingredient list in Korean only. Names below are the matching INCI names from the Korean Cosmetic Association ingredient dictionary.

Key ingredient

• Water
• Butylene Glycol
• Propanediol
• 1,2-Hexanediol
• Niacinamide
• Hydroxyethyl Urea
• Methyl Gluceth-20
• Glycereth-26
• Acrylates/C10-30 Alkyl Acrylate Crosspolymer
• Polyglyceryl-10 Laurate
• Arginine
• Allantoin
• Glycerin
• Ethylhexylglycerin
• Sodium Polyacrylate
• Polyglyceryl-10 Myristate
• Disodium EDTA
• Sodium Hyaluronate
• Betula Platyphylla Japonica Juice
• Dipotassium Glycyrrhizate
• Rosmarinus Officinalis (Rosemary) Leaf Oil
• Mentha Piperita (Peppermint) Leaf Extract
• Mentha Piperita (Peppermint) Oil
• Caprylic/Capric Triglyceride
• Ascorbyl Glucoside
• Glutathione
• Centella Asiatica Extract
• Ceramide NP
• Hydrogenated Lecithin
• Camellia Japonica Seed Oil
• Papain
• Polyglutamic Acid
• Linoleic Acid
• Citrus Aurantifolia (Lime) Fruit Extract
• Tocopherol

Ingredients with no mark are ones we found nothing notable about, and when marks overlap on one ingredient we show the caution first.

We could not place these in the list above: 로즈마리잎오일, 페퍼민트오일, 폴리글리세릴-10라우레이트, 폴리글리세릴-10미리스테이트, 카프릴릭/카프릭트라이글리세라이드, 하이드로제네이티드레시틴, 동백나무씨오일

Did the ad claims hold up?

We checked 30 lines this product advertises against the ingredient list and public documents. One of them holds up. The rest are only partly right or have nothing behind them.

Claims translated from Korean, originals preserved.

Each line is quoted as the brand published it, and each one was read on its own against the ingredient list and the documents the brand publishes.

How we read these lines

What else is worth seeing?

Products we read alongside this one.

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