Resveratrol, also referred to as 3,5,4'-trihydroxystilbene, is a polyhydroxy-substituted compound present in red grapes, raspberries, blueberries and certain other plant berries or extracts. It has been reported that resveratrol has anti-ageing, anti-cancer and antiviral effects and it has been incorporated into a variety of cosmetic compositions. However resveratrol is generally unstable in cosmetic formulations and it can hydrolyse and cause discolouration of the product.
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