DEWYTREE AC Deep Calming Mask

What is this product?

A 10-sheet Korean calming mask built as a peppermint cooling treatment rather than a bland soothing one. Worth reaching for when skin is hot, flushed after sun or exercise, and otherwise intact: the essence is humectant-heavy, the sheet leaves no occlusive film, and the menthol hit is immediate. Worth avoiding on genuinely reactive skin, because peppermint oil and peppermint leaf extract sit 20th and 21st of 53 ingredients, ahead of both centella entries, and the retailer's own EWG grouping puts that pair alone in the 4 band. Cooling is a nerve signal, not anti-inflammation, so the brand's sensitive-skin framing overshoots. No fragrance or 착향제 is declared, no pH is published, and no brand-cited clinical figures appear in the archived pages. Dry skin needs a cream over the top.

What makes it different?

Cooling is delivered by peppermint oil placed 20th of 53, ahead of both centella entries, in a mask sold as calming, and the formula carries no occlusive phase at all, so it cools and hydrates without finishing the routine.

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
• Glycereth-26
• Methyl Gluceth-20
• Hydroxyethyl Urea
• Acrylates/C10-30 Alkyl Acrylate Crosspolymer
• Arginine
• Allantoin
• Polyglyceryl-10 Laurate
• Ethylhexylglycerin
• Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
• Glycerin
• Polyglyceryl-10 Myristate
• Disodium EDTA
• Dipotassium Glycyrrhizate
• Xanthan Gum
• Betula Platyphylla Japonica Juice
• Mentha Piperita (Peppermint) Oil
• Mentha Piperita (Peppermint) Leaf Extract
• Sorbitan Isostearate
• Centella Asiatica Extract
• Decyl Glucoside
• Papain
• Glucose
• Caprylic/Capric Triglyceride
• Ulmus Davidiana Root Extract
• Centella Asiatica Leaf Extract
• Cladosiphon Okamuranus Extract
• Camellia Sinensis Leaf Extract
• Salix Alba (Willow) Bark Extract
• Viola Mandshurica Flower Extract
• Sodium Hyaluronate
• Aloe Barbadensis Leaf Extract
• Dioscorea Japonica Root Extract
• Laminaria Japonica Extract
• Ceramide NP
• Coffea Arabica (Coffee) Seed Extract
• Hydrogenated Lecithin
• Glyceryl Caprylate
• Tocopherol
• Pueraria Lobata Root Extract
• Pinus Palustris Leaf Extract
• Oenothera Biennis (Evening Primrose) Flower Extract
• Citrus Aurantium Bergamia (Bergamot) Leaf Extract
• Hydroxypropyltrimonium Hyaluronate
• Pinus Densiflora Leaf Extract
• Sodium Acetylated Hyaluronate
• Hydrolyzed Hyaluronic Acid
• Hyaluronic Acid
• Sodium Hyaluronate Crosspolymer
• Potassium Hyaluronate

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: 페퍼민트오일, 폴리글리세릴-10라우레이트, 폴리글리세릴-10미리스테이트, 솔비탄아이소스테아레이트, 카프릴릭/카프릭트라이글리세라이드, 글리세릴카프릴레이트, 하이드로제네이티드레시틴

Did the ad claims hold up?

We checked 4 lines this product advertises against the ingredient list and public documents. One of them looks likely, though none are proven outright.

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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