Bioperine is a pure form of piperine, derived from the fruits of black pepper. Studies indicate that Bioperine promotes nutrient absorption due to Bioperine’s nonirritating interaction with the surface of the intestinal tract. Each tablet contains 28 mg calcium and 10 mg black pepper extract (Bioperine) yielding 95% piperine. Take 1 tablet with a vitamin supplement 30 to 60 minutes before meals. Do not exceed 2 tablets daily.