COSRX Alpha-Arbutin Hydrogel Face Mask 3-Pack — Niacinamide Brightening, Overnight Hydration

This three-pack of hydrogel masks combines targeted brightening actives with deep hydration technology so you can use one sheet for an intensive session or wear it overnight as part of your evening routine. The clear, gel-like sheet adheres closely to the face so actives penetrate evenly while the mask keeps skin moisturized and protected from evaporation. The formula blends alpha-arbutin and niacinamide to address visible discoloration alongside antioxidants and peptides for surface-smoothing and skin resilience.

How does the hydrogel mask fix into my nightly routine?

The hydrogel design sits flush on facial contours, creating a sealed environment that helps actives absorb more efficiently than a cotton sheet. Use after cleansing and toner or serum; leave on for 2–3 hours or overnight for extended delivery. After removal, gently pat remaining essence into the skin — no rinsing necessary.

• Apply on clean skin after toner or light serum
• Wear 2–3 hours or overnight for deeper absorption
• Massage leftover essence into face and neck

Which ingredients help even skin tone and texture?

Alpha-arbutin is the primary brightening agent designed to help reduce the look of pigmentation, while niacinamide supports smoother texture and radiance. Glutathione and ferulic acid provide antioxidant support, and low-molecular-weight collagen plus adenosine help the skin appear firmer and more elastic.

• Alpha-arbutin targets visible dark spots and uneven tone
• Niacinamide refines texture and boosts radiance
• Glutathione and ferulic acid offer antioxidant support
• 200 Dalton collagen and adenosine help skin feel firmer

What results can I expect and how fast?

Individual responses vary, but the hydrogel delivers immediate hydration and a smoother surface feel after one use. In consumer testing, participants reported clearer-looking skin and improved softness; consistent weekly use typically shows more noticeable changes over time. This mask supports short-term glow and ongoing improvement when used alongside a balanced skincare routine.

• Instant: increased hydration and smoother skin surface
• Short term: more even-looking tone with repeated use
• Complement with sunscreen during daytime for best results

Is the mask safe for sensitive skin and how should I test it?

Formulated for targeted discoloration care, the mask includes active ingredients that can be sensitizing for some people. COSRX recommends performing a patch test on the body 24 hours before full-face use and stopping use if irritation appears. For persistent sensitivity or specific concerns, consult a dermatologist before applying to the entire face.

• Patch test on inner forearm or behind ear for 24 hours
• Discontinue if redness, burning or discomfort occur
• Seek medical advice for severe reactions or known allergies

Who is this for: The COSRX Alpha-Arbutin Discoloration Care Hydrogel Face Mask suits anyone seeking a targeted brightening boost plus deep hydration — ideal for travel, occasional intensive treatment, or overnight care. It’s appropriate for skin types wanting to address uneven tone, dullness, or surface texture while enjoying a non-sticky, adherent hydrogel experience. If you have highly reactive skin or active eczema, perform a patch test or consult a professional before use.

Ingredients

Water, Glycerin, Acrylates Copolymer, Niacinamide, 1,2-Hexanediol, Ceratonia Siliqua (Carob) Gum, Chondrus Crispus, Agar, Betaine, Sclerotium Gum, Potassium Chloride, Alpha-Arbutin, Erythritol, Sucrose, Cellulose Gum, Polyglyceryl-10 Laurate, Panthenol, Allantoin, Acetyl Glucosamine, Xanthan Gum, Ethylhexylglycerin, Adenosine, Theobroma Cacao (Cocoa) Seed Extract, Hydrolyzed Collagen, Sodium Phytate, Hydrogenated Lecithin, Cetearyl Alcohol, Stearic Acid, Pentylene Glycol, Ferulic Acid, Ceramide NP, Sodium Hyaluronate, Tocopherol, Sodium Hyaluronate Crosspolymer, Hydrolyzed Hyaluronic Acid, Ceramide NS, Cholesterol, Phytosphingosine, Hyaluronic Acid, Ceramide AP, Ceramide AS, Hydrolyzed Sodium Hyaluronate, Glutathione, Ceramide EOP