Re
Resveratrol
ResveratrolAntioxidant
Polyphenolic antioxidant from grape skins. Pairs with vitamin C + vitamin E to extend antioxidant cycling.
What it does
Resveratrol scavenges free radicals through a different mechanism than ascorbic acid or vitamin E, which is why it shows up in stacked-antioxidant serums. It also has mild anti-inflammatory effects in cell culture. Real-world skin penetration is limited, so formulation (encapsulation, vehicle, percentage) matters more than the raw inclusion.
The evidence, graded
moderateAntioxidants neutralize free radicals generated by the UV that gets through sunscreen. Layering an antioxidant serum under SPF compounds photoprotection.Wu 2011 · Clinical and Experimental Dermatology ↗
emergingVitamin C, vitamin E, and ferulic acid show synergistic photoprotection. The combination is more stable and doubles photoprotection compared to vitamin C alone.Lin 2005 · Journal of Investigative Dermatology ↗
Graded per the methodology: strong · moderate · emerging · expert consensus. A weak source on a strong claim gets the weaker label.
Pairs worth knowing
Browse all 668 ingredients — grouped by what they do, each with whatever evidence we can cite.
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