medicube AGE-R Glutathione Glow Serum — 50,000ppm Glutathione Brightening & Elasticity Boost

medicube AGE-R Glutathione Glow Serum is a brightening and elasticity-focused facial serum formulated with high-concentration glutathione, niacinamide, adenosine and collagen derivatives to boost radiance and address pigmentation while remaining gentle for daily use.

This lightweight serum pairs with medicube's Booster-H to enhance absorption and deliver sustained glow. Its signature Active Glow-zom Technology concentrates glutathione (50,000ppm) alongside niacinamide, patented skin-like collagen, adenosine and bifida ferment lysate to target uneven tone, visible lines and dull texture. The formula is tuned to a medium viscosity that works well under Hydra-coated skin and supports 24-hour radiance without heavy residue.

How does this serum improve skin tone and reduce pigmentation?

The serum combines glutathione and niacinamide—two ingredients known for skin-brightening effects—to help even out discoloration and reduce the appearance of dark spots. Patented collagen-like ingredients and bifida ferment lysate support skin barrier resilience so the skin appears smoother and more luminous over time.

• 50,000ppm glutathione for potent antioxidant support
• Niacinamide to reduce visible blemishes and even tone
• Bifida ferment lysate to help strengthen the skin barrier
• Patented skin-like collagen to improve surface firmness and bounce

Will the serum help with fine lines and loss of firmness?

Yes—ingredients such as adenosine and the skin-like collagen work together to plump and smooth expression lines. Regular use can make crow's feet, smile lines and shallow forehead lines appear less noticeable by supporting surface elasticity and visible volume.

• Adenosine to support skin smoothing and visible wrinkle reduction
• Collagen derivative to impart a lifted, voluminous look
• Medium viscosity to sit well under moisturizers without creasing

How should I use AGE-R Glutathione Glow Serum with Booster-H for best results?

Apply Booster-H first to prime the skin and improve serum absorption—medicube reports up to threefold increased effectiveness when paired. Dispense a few drops of Booster-H, pat until absorbed, then apply 1–2 pumps of the AGE-R serum and massage gently until blended. Use morning and evening as part of a standard skincare routine.

• Step 1: Apply Booster-H and allow absorption
• Step 2: Smooth 1–2 pumps of AGE-R serum over face and neck
• Step 3: Follow with moisturizer and SPF in the morning

Is this serum suitable for sensitive skin and daily use?

The formula is designed to be effective while keeping irritation low; it passed a primary patch test indicating low irritation for many users. As with any active product, start with a patch test and introduce it into your routine gradually if you have reactive or very sensitive skin.

• Primary patch-tested for low irritation
• Gentle viscosity that doesn't strip moisture
• Daily morning and evening use recommended for gradual improvement

Who is this for: medicube AGE-R Glutathione Glow Serum is aimed at people seeking a brighter, more even complexion with added support for visible lines and elasticity. It's suitable for users who want a technologically driven formulation—featuring high-concentration glutathione and complementary actives—and who plan to incorporate a booster step (Booster-H) for maximum absorption. If you are managing pigmentation, dullness, or early signs of loss of firmness and appreciate a serum that layers well under hydrators and makeup, this product is a targeted option to add to your skincare routine.