Resveratrol

Polyphenol antioxidant from grapes; protects and firms skin.

Also known as: 3,5,4'-trihydroxy-trans-stilbene; resveratrol extract; grape seed extract (when derived from grapes)

What it is

Resveratrol is a naturally occurring polyphenolic compound found primarily in grape skins, berries, and red wine. It's a potent antioxidant that crosses the skin barrier and accumulates in the epidermis and dermis.

What it does

Resveratrol neutralizes free radicals and reduces oxidative stress, which slows collagen breakdown and supports skin firmness. It also activates sirtuins (longevity pathways) and has mild anti-inflammatory properties, helping to calm irritation and improve skin resilience. Studies show it can enhance skin radiance and reduce the appearance of fine lines over time.

The evidence

Strong clinical evidence supports its antioxidant and anti-inflammatory effects; multiple human studies confirm improvements in skin elasticity, firmness, and radiance at 0.5–1% concentrations over 4–12 weeks. Emerging evidence suggests sirtuin activation may enhance cellular repair, though long-term anti-aging claims remain under investigation.

Best for

Mature, sun-damaged, and sensitive skin; anyone seeking antioxidant protection and mild firming benefits.

Pairs well with

Vitamin C, ferulic acid, vitamin E, hyaluronic acid, niacinamide, and peptides; synergizes well with other antioxidants and hydrators.

Use cautiously with

No major conflicts; generally stable with most actives. Avoid excessive heat during formulation, as resveratrol degrades under UV light and high temperatures.

Cautions

Resveratrol is photolabile; formulations should be opaque or packaged in dark bottles. Rare contact sensitivity in very sensitive skin; patch test first. Pregnancy safety data is limited; use cautiously or consult a provider.