Tested for Purity and Potency Increase Muscle Strength and Power Increase Free Testosterone Levels Maximize Restful Sleep Natural, Non-Hormonal Formula Dietary Supplement Product Produced in a GMP Certified Facility ZMA is a unique anabolic formula containing highly bioavailable forms of zinc and magnesium. Formulated with vitamin B6 to further enhance zinc and magnesium absorption and utilization, ZMA is a powerful non-steroidal, all-natural dietary supplement clinically proven to: Increase Muscle Strength and Power Increase Free Testosterone Levels ZMA is the original zinc-magnesium supplement and the only one validated by the published research