medicube Glutathione Glow Serum 50,000 ppm — Daily Brightening & Firming Antioxidant Serum

Medicube AGE-R Glutathione Glow Serum is a daily antioxidant and elasticity serum formulated to brighten, support skin firmness, and deliver sustained radiance.

Combining a high concentration of glutathione with niacinamide, adenosine, skin-like collagen, and bifida fermentation lysate, this Korean skincare serum targets uneven tone and signs of aging while remaining suitable for everyday use. Its texture is calibrated to layer comfortably under creams or to be boosted with Booster-H for improved penetration and amplified results.

How does this serum improve skin brightness and tackle pigmentation?

The formula centers on Active Glow-zom Technology with glutathione at a concentrated level, supported by niacinamide to even skin tone and reduce the visual impact of dark spots. Together these actives help create a more luminous complexion when used consistently.

• 50,000 ppm glutathione for antioxidant support and brightening potential
• Niacinamide to even tone and refine skin texture
• Bifida fermentation lysate to soothe and support barrier resilience

Will the serum help with fine lines and skin elasticity?

The AGE-R serum blends adenosine and patented skin-like collagen to plump the look of fine lines and restore a fuller appearance to creases like crow's feet and smile lines. Results are cosmetic and rely on regular use to maintain the visibly lifted, volumized effect.

• Adenosine for smoothing the look of dynamic wrinkles
• Patented skin-like collagen to add surface plumpness and bounce
• Designed to complement a regimen that includes hydrating products for better long-term elasticity

How should I use the serum and what is Booster-H for?

Apply the serum after cleansing and toning, before heavier moisturizers or oils. For enhanced absorption and threefold efficacy, apply Booster-H prior to the serum to prime the skin and increase ingredient delivery.

• Use a few drops morning and night on cleansed skin
• Layer under moisturizer or sunscreen for daytime protection
• Pair with Booster-H to boost penetration and maximize visible effects

Is this serum gentle enough for daily use on sensitive skin?

The formulation is designed for routine use and has been primary patch tested for low irritation, balancing potent actives with soothing support ingredients. As with any active product, introduce it gradually and monitor your skin's response.

• Primary patch-tested for low irritation
• Includes barrier-supporting ingredients to reduce reactive sensitivity
• Recommended: patch test and stepwise introduction if skin is reactive

Who is this for: Medicube AGE-R Glutathione Glow Serum is aimed at anyone looking to brighten dullness, fade uneven pigmentation, and improve the appearance of fine lines without heavy, occlusive textures. It's suitable for daily use within a K-beauty layering routine, especially for those who want a radiance-boosting step that pairs with hydration boosters like Booster-H for faster, more notable results.

Ingredients

Water, Glycerin, PEG-8, Niacinamide, Butylene Glycol, Methylpropanediol, 1,2-Hexanediol, Betaine, Glycereth-26,m Bis-PEG-18 Methyl Ether Dimethyl Silane, Polyglyceryl-10 Laurate, Bifida Ferment Lysate, Methyl Gluceth-20, Panthenol, Squalane, Glucosylrutin, Hydrogenated Lecithin, Carbomer, Caprylic/Capric Triglyceride, Tromethamine, Xanthan Gum, Propanediol, Flavor, Ethylhexylglycerin, Glutathione(500ppm), Adenosine, Ceramide NP, Sodium Phytate, Benzyl Glycol, Hydrolyzed Glycosaminoglycans, Sodium Hyaluronate, Dextrin, Theobroma Cacao (Cocoa) Extract, Beta-Glucan, Cyanocobalamin, Sodium Hyaluronate Crosspolymer, Tocopherol, Hydrolyzed Hyaluronic Acid, Hydroxypropyltrimonium Hyaluronate, Soluble Collagen, Hyaluronic Acid, Sodium Acetylated Hyaluronate, Sodium Stearoyl Glutamate