Vitis vinifera (grape) extract, derived from grape seeds, skin, or leaves, is rich in polyphenols, resveratrol, and proanthocyanidins that provide antioxidant and skin-conditioning benefits. It is used in topical formulations to help neutralize free radicals and support skin barrier protection.
| Reported effect | How often | Notes |
|---|---|---|
| Contact irritation (mild redness, stinging) | Uncommon | Most often associated with higher concentrations or sensitive skin. |
| Allergic contact dermatitis | Rare | Reported in individuals sensitized to grape-derived components. |
| Photosensitivity reactions | Very rare | Limited case reports; not a well-established effect. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.