TESTOSTERONE SUPPORT. Zinc, Magnesium, & vitamin B6 are all required for testosterone production in men. Low testosterone levels are associated with muscle loss, fatigue, and poor libido. MUSCLE RECOVERY. After a workout the body requires minerals and proteins to repair damaged muscle fibers. Zinc, magnesium, and B6 are all essential elements of this process. Supplemental forms of these vitamins can significantly reduce the recovery time between workouts. IMMUNE BOOSTER. All 3 of the ingredients in ZMA are used to produce white blood cells, which form the basis of our immune system. Without them, our defences are easily overcome by invading bacteria or viruses. GELATIN-FREE VEGATARIAN CAPSULES. Our ZMA+ capsules are gelatin-free, suitable for Vegetarians & Vegans. Non-GMO. Gluten, Dairy and Allergen Free. If you are in any way unsatisfied with your order, we offer a 30 day money back guarantee. Just let us know and we'll take it from there. THE BRITELIFE QUALITY MARQUE. BriteLife is a small, family run business specialising in high quality supplementation. We dedicate ourselves to sourcing the top ingredients that meet our strict quality control standards, manufactured in hand picked establishments here in the UK. All our facilities are ISO 9001 clean-room certified and GMP Licenced - That's why you know you're only getting the purest supplementation that's quality tested every step of the way. The Britelife marque means quality.