Strawberries are a good source of polyphenols. The seeds are an even better source. We made sure to source an extract standardized for at least 2% polyphenols. Studies of this extract suggest it might support healthy skin, weight, metabolism, and other functions needed for healthy aging.* Strawberry polyphenols would also be expected to support antioxidant defenses and overall cellular health.* But the main reason we included the strawberry seed extract is because it is a source of a specific flavonoid called tiliroside.