Bodybuilding.com Signature ZMA

A good night's sleep is key to your overall health-and your goals in the gym. Without proper sleep, your body can't repair itself. Signature ZMA is a patented blend of zinc, magnesium, and vitamin B6. Clinical research has shown that this ZMA blend, when given to trained athletes before bed, may support improvements in sleep quality, strength, power, and testosterone levels. Zinc and magnesium also both play vital roles in hundreds of bodily functions necessary to performing your best, while vitamin B6 supports their absorption.