This is the official version of ZMA® by SNAC Systems.ZMA® is a synergistic combination of Zinc & Magnesium designed to maximize absorption & promote recovery from exercise. Zinc plays a central role in the regulation of cellular growth & tissue repair as well as the maintenance of a healthy immune system. Magnesium is essential for the maintenance of electrolyte balance energy production & normal neuro-muscular function. Because physical activity can increase the need for these two minerals ZMA® is the ideal supplement to aid in their replenishment. Formulated with vitamin B-6 to further enhance zinc & magnesium absorption & utilization ZMA® is a powerful all-natural dietary supplement clinically proven to increase growth compounds & insulin-like growth factor (IGF-1) levels & enhance strength significantly greater than a placebo during a strength training program.ZMA® is a registered trademark of SNAC Systems Inc. patent pending. UK Delivery Only