Glowra
Vitamin C serum in an amber dropper bottle on white marble
Skincare

The Power of Antioxidants in Skincare

Dr. Eleanor Voss
Dr. Eleanor Voss
7 min read20 February 2026
Homechevron_rightBlogchevron_rightThe Power of Antioxidants in Skincare

Vitamin C, niacinamide, resveratrol — antioxidants are the unsung heroes of every expert skincare routine. Here is what they actually do.

Every second your skin is exposed to light, pollution, and metabolic activity, unstable molecules called free radicals are causing low-level cellular damage. Over years, this oxidative stress degrades collagen, accelerates pigmentation, and dulls the complexion. Antioxidants interrupt this process before it can take hold.

How Free Radical Damage Works

A free radical is a molecule with an unpaired electron — inherently unstable, it 'steals' electrons from surrounding cells to stabilise itself, triggering a chain reaction of damage. UV radiation, pollution, cigarette smoke, and even your own mitochondrial activity generate free radicals continuously. The skin's natural antioxidant defences deplete with age, which is why topical antioxidants become increasingly important from your late twenties onward.

The Key Antioxidants and What They Do

  • Vitamin C (L-ascorbic acid): neutralises UV-induced radicals, inhibits melanin production, boosts collagen synthesis
  • Niacinamide (Vitamin B3): reduces inflammation, strengthens the barrier, fades post-inflammatory hyperpigmentation
  • Resveratrol: activates sirtuins (longevity proteins), calms UV-induced stress, supports collagen integrity
  • Vitamin E (tocopherol): works synergistically with Vitamin C, stabilises lipid membranes, photoprotective
  • Ferulic acid: stabilises Vitamin C and E, doubles their photoprotective efficacy

Applied consistently in the morning, a well-formulated Vitamin C serum is one of the highest-ROI interventions in non-clinical skincare.

Dr. Eleanor Voss, Medical Director
Morning skincare routine laid out on a bathroom shelf
The antioxidant step belongs in your morning routine, applied after cleansing and before SPF.

Application Protocol

Apply your antioxidant serum to clean, slightly damp skin immediately after cleansing, before any moisturiser. This ensures maximum penetration before occlusion. Always follow with SPF during the day — antioxidants are not a replacement for sunscreen, but together they provide significantly stronger photoprotection than either alone.

Supercharge Your Routine

Our Skin Renewal treatment combines topical antioxidant infusion with medical-grade exfoliation for a visible brightening effect.

Explore Skin Renewalarrow_forward
Dr. Eleanor Voss

Written by Dr. Eleanor Voss

Medical Director

antioxidantsvitamin Canti-ageingserums