G.M. Collin Antioxidant 20 Serum – Medical Line High-Potency Antioxidant Treatment (30 ml)

G.M. Collin Antioxidant 20 Serum is a professional-tier 20% antioxidant complex from the G.M. Collin Medical Line - formulated to neutralize the free radicals, UV stress, and environmental pollutants that drive premature aging, dullness, and uneven skin tone. The lightweight serum absorbs cleanly and layers under SPF for maximum daily protection.

Who It Is For: Anyone with visible signs of environmental damage - sun spots, dullness, fine lines, loss of radiance, uneven tone. Particularly valuable for city dwellers, frequent travelers, and clients investing in in-clinic anti-aging treatments who want to extend results.

Key Benefits: The 20% antioxidant complex provides clinical-grade free radical defense, helping prevent and visibly improve the appearance of oxidative damage. Brightens overall complexion, fades surface pigmentation over time, supports collagen integrity by protecting the dermal matrix, and primes the skin to perform better with every other active you layer on top.

How It Fits Your Routine: Apply 4–6 drops every morning after cleansing, before moisturizer and SPF. For best long-term anti-aging results, pair with A.G.E. Skin Defense Cream and a 0.5% or 1% Retinol Complex Night Cream at night.

At a Glance

• Size: 30 ml
• Category: Serums
• Targets: Fine Lines & Aging, Dark Spots, Dullness & Texture, Sun Damage
• Skin Type: All Skin Types

Key Ingredients

• 20% Vitamin C (19% L-Ascorbic Acid USP and 1% Sodium Ascorbate): Antioxidant.
• Ergothioneine (EGT): Antioxidant.
• Matrixyl® 3000 (palmitoyl tripeptide-1, palmitoyl tetrapeptide-7): Minimizes the appearance of wrinkles.

How to Use

Daily, morning and/or evening, on well cleansed skin, apply 4 to 5 drops in palm of hand and use fingertips to massage a thin layer on face and neck. For external use only, avoid direct contact with the eyes.

Ingredient and usage information published by the manufacturer.