Description
The Medicube Deep Vita C Glutathione Brightening Mask is a potent sheet-mask treatment designed to help brighten dull skin tone, reduce visible dark spots or yellowish undertone, and support a more even, radiant complexion. The formula highlights a blend of vitamin C, glutathione, and niacinamide, plus soothing extracts to help calm and refresh the skin.
Skin Type
Normal to combination skin — particularly if your skin shows signs of dullness, uneven tone or pigmentation.
Dry skin that is looking for a brightening boost (when the surface looks tired or lacks glow).
Skin with mild discoloration, yellow undertone, or “post-inflammatory” dark marks from previous breakouts.
Skin using sunscreen and/or active treatments for tone correction — this mask serves as a supplementary brightening step.
Key Benefits
Brightening & tone-evening: With glutathione (a strong intracellular antioxidant) and vitamin C, the mask aims to reduce visible dullness and dark marks, and support more luminous, even skin.
Soothes & calms skin: Includes niacinamide plus cica/extracts (Centella Asiatica) to help calm, smooth and condition the skin — beneficial when the surface is rough or fatigued.
Hydrating & comfortable sheet experience: The mask format allows a generous essence dose and a “rest” experience for skin. The ingredients include humectants and barrier-friendly ingredients to help support the skin during the brightening process.
Targeted spot or treatment-use: Ideal as a weekly or bi-weekly boost rather than an everyday basic — especially helpful when your skin is in recovery mode and you want a “brightening + recovery” step.
Convenience & pampering element: Because it is a sheet mask, the application is simple and can feel like a special care moment — which is helpful given your skin’s current need for both functional repair and comfort.
Key Ingredients
Glutathione — A powerful antioxidant tripeptide (glycine-cysteine-glutamic acid) known for helping to protect skin cells from oxidative damage and supporting a clearer complexion.
Vitamin C / Ascorbic Acid / Vitamin C derivatives — Helps inhibit melanin formation and supports collagen synthesis and overall brightness.
Niacinamide (Vitamin B3) — Supports barrier lipids, helps refine texture and even out skin tone.
Centella Asiatica Extract & Soothing Botanical Extracts — For calming skin, supporting barrier comfort and reducing visible irritation.
Humectants & barrier-support ingredients — Glycerin, butylene glycol, panthenol, all-in to help skin stay hydrated while undergoing brightening treatment.
Ingredients List
Water Dipropylene Glycol Glycerin Butylene Glycol Niacinamide 1,2-Hexanediol Cetyl Ethylhexanoate Panthenol Allantoin Xylitol Centella Asiatica Leaf Extract Lactobacillus Ferment Lysate Lactococcus Ferment Lysate Bifida Ferment Lysate Caprylyl Glycol Sorbitan Laurate Hydrogenated Lecithin Hydrolyzed Hyaluronic Acid Tocopherol Asiaticoside Madecassic Acid Asiatic Acid Acetyl Dipeptide-1 Cetyl Ester Acetyl Hexapeptide-1 Palmitoyl Tripeptide-5 Beta-Glucan Ceramide NP Acetyl Octapeptide-3 hydrogenated Vegetable Oil Behenyl Alcohol Polyglyceryl-3 Methylglucose Distearate Arginine Carbomer Adenosine Hydroxyethylcellulose Ethylhexylglycerin Disodium EDTA
Disclaimer: We do our best to provide accurate and up-to-date product information. However, formulations may change without notice. For the most current ingredient list, usage instructions, and warnings, please refer to the product packaging prior to use.
Pregnancy and Nursing Safe
YES
While the product contains natural and soothing ingredients, it is advisable for pregnant or breastfeeding individuals to consult a healthcare professional before using any new products.
How to use
After cleansing (and optional toner/essence if you use one), apply the mask to your clean, dry face.
Remove the sheet from its packaging, unfold and place over your face, aligning eye/nose/mouth cut-outs.
Leave on for about 10-20 minutes (various site listings say this time-frame) allowing the essence to absorb.
Remove the mask and gently pat in any remaining essence until fully absorbed. Do *not* rinse.
Follow with your hydrating serum or barrier-repair cream — since your barrier is compromised, this follow-up is important to lock in benefits.
Frequency: Use about 1–2 times per week (or when you feel your skin is dull, uneven, or you want a brightening boost). On nights when your skin is especially flaky or irritated, you might skip other strong actives and just do this mask + richer moisturizer.
Tip for your skin condition: Because you have occasional cystic acne and dryness/flaking: On nights you use this mask, keep other active treatments (strong acids/retinol) minimal or off — let your skin focus on brightening & repair. Also ensure you apply a rich moisturizer after to support the barrier.
