Resveratrol is well known for being the antioxidant present in red wine. It is a phytonutrient known as a polyphenol found in grapes, blue and red berries such as cranberries and blueberries, and in some herbs. Acta-Resveratrol also provides vitamin C, quercetin and rosemary extract. Vitamin C contributes to protection of the cells from oxidative stress. Note: This product is not intended to diagnose, treat, cure, or prevent any disease, nor should supplements be used as a substitute for a balanced diet. Not intended for pregnant/breastfeeding mothers or children under 18. Do not exceed the recommended dose.