Herbal Supplement. Certified potency. 300 mg Extract per capsule. 0.6% Macamides and Macaenes. Nature's Herbs Maca Root Extract (Maca-Power) is the highest quality, most potent and most effective form of Maca Extract available. Standardized for 0.6% Macamides and Macaenes, Maca Root Extract offers all the naturally-balanced active principles while retaining and enhancing all the whole-plant synergistic benefits, thus making it not only one of the world's finest and purest plant extracts, but also faster-acting and more assailable than unconcentrated Maca. 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, special air-tight seals and amber packaging for uncompromised quality.