The pharmacological activity of ashwagandha is thought to be most concentrated in the withanolides, and this product is guaranteed to contain 1.5% withanolides. Directions: As a dietary supplement, take one capsule one to two times a day with a meal or a glass of water. Ingredients: Ashwagandha (Withania somnitfera) (root extract) (Guaranteed 7 mg [1.5%] withanolides) 470 mg