Contains 600mg of the highest quality Trans-Resveratrol in each serving– ethically sourced and carefully extracted to ensure 98% standardized purity. Other resveratrol supplements contain 50% or less. · Resveratrol has amazing health benefits, however purity has always been a major challenge for this super-nutrient. We test every batch to ensure the highest levels of purity – something most other Resveratrol supplements don’t.