Optimize Muscle Recovery, Performance and Sleep Optimal sleep plays a critical role in achieving your fitness goals and keeping you healthy. A restful sleep is also key to muscle repair and necessary to maximize your recovery and performance. Z-MATRIX combines the proper amounts of essential minerals and vitamins in their most highly absorbable forms along with Theanine to support a deeper, more restful sleep as well the benefits from Zinc and Magnesium, and vitamins B and D in supporting healthy hormone, metabolism and energy levels. Better Rest and Recovery Z-Matrix is formulated to help you get the most out of sleep to boost muscle recovery and growth. Better sleep has a direct impact on body composition and how the body functions, and poor-quality sleep can interfere with your performance and results. Made with research proven ingredients including Zinc for immune system and muscle support and magnesium for metabolism, sleep and muscle recovery. Sleep, train and recover better with Z-Matrix.