Nature’s way premium extract standardized devil’s claw dietary supplement contains 700 mg. Of devil’s claw root extract with 1.5% harpagoside in a formula that is tested for superior quality. We package our devil’s claw root extract in vegetarian capsules free from most common food allergens, making this supplement suitable for a wide variety of users. At the suggested dose of two vegetarian capsules a day, this 90 count bottle offers a 45 day supply.