Certified PotencyStandardized ExtractAesculus HippocastanumNutritionally Supports Leg Vein FunctionHerbal SupplementCertified Potency Horse Chestnut Extract (Horse Chestnut Power) is the highest quality, most potent and most effective form of Horse Chestnut Extract available. Horse Chestnut Extract is standardized with the greatest preferred concentration of naturally balanced active principles, among them Escins, while retaining and enhancing all the whole-plant synergistic benefits. Escins are a complex mixture of triterpenoids, a novel class of compounds in plants like the bioflavonoids and carotenoids. Certified Potency is your guarantee of dependable consistent quality and potency in every capsule every time! Only from Nature"s Herbs. Our exclusive Freshcare System inhibits normal plant oxidation, maintaining product potency and extending freshness. It includes all-natural antioxidants in each capsule, oxygen-absorbing packets in each bottle, specially air-tight seals and amber glass packaging for uncompromised quality.