Polyphenols are micronutrients that have antioxidant properties, which provides numerous health benefits to the body.Resveratrol is one of the most potent polyphenols. However, resveratrol can be found in two forms - Trans-Resveratrol and Cis-Resveratrol. Study after study has shown that Trans-Resveratrol is the form you want if you are looking for health benefits from Resveratrol.Green Tea Extract, Acai Fruit Extract, Grape Seed Extract, and Red Wine Extract are also powerful polyphenols.