MuscleBlaze ZMA supplement provides 100% RDA of zinc, magnesium, and vitamin B6. It is crafted for bodybuilders and athletes to improve muscle strength & recovery, muscle gains, and sleep quality. Magnesium aspartate is the only magnesium source in this ZMA supplement. Therefore, it provides better bioavailability for improved muscle strength & recovery, supports nerve function, promotes better sleep, and reduces fatigue.