Musashi ZMA+ is a source of key minerals Magnesium, Zinc and Manganese and can help to replace these minerals which can be lost during vigorous exercise. ZMA+ supports healthy reproductive hormones and assists protein synthesis in the body. Each of these essential minerals play important roles in nutrient metabolism and normal muscle function during and after exercise. Informed-Sport is a global quality assurance program for sports nutrition products and supplement manufacturing facilities. The program certifies that every batch of a product that bears the Informed-Sport logo has been tested for banned substances by LGC's world-class sports anti-doping laboratory