A glass of red wine contains approximately 640 mcg of resveratrol. A handful of peanuts supplies nearly 75 mcg. Pure Encapsulations Resveratrol provides 40 mg trans resveratol per capsule. Resveratrol may promote cardiovascular health by maintaining healthy platelet function and arachidonic acid metabolism. Resveratrol is also a powerful antioxidant, providing cells with protection against free radicals.