A polyphenol from grapes and berries, the one ingredient with a specific disclosed amount: 12mg.
Resveratrol is a polyphenol compound found in grapes, berries and a few other plants, studied broadly for antioxidant activity and, more specifically, for potential effects on metabolic health.
It's the one ingredient in this formula with a specific disclosed amount in the brand's own marketing materials: 12mg per serving.
12mg is on the lower end compared to doses used in some clinical resveratrol research, which often uses considerably higher amounts — worth knowing if you're comparing this formula to dedicated resveratrol supplements.