Patented blend of Zinc, Magnesium, and Vitamin B6 Research-tested to increase testosterone levels and muscle strength in well-trained athletes Supports muscle size, recovery, and overall performance Elevate your performance with Optimum Nutrition ZMA, a powerful blend of Zinc, Magnesium, and Vitamin B6 designed to naturally increase testosterone production and support muscle and strength gains. University laboratory tests have shown that this formula enhances healthy testosterone levels, leading to an average of 2.5 times greater muscle strength gains in athletes. Backed by two recent clinical trials, this synergistic combination of Zinc Monomethionine Aspartate, Magnesium Aspartate, and Vitamin B6 has been proven to significantly increase anabolic hormone levels and muscle strength in well-trained athletes. Experience the benefits of this novel formula, which may also enhance endurance, healing, growth, and restful sleep. For optimal results, take 2-3 capsules daily, preferably on an empty stomach 30-60 minutes before bedtime, or as directed by a healthcare professional. Men are recommended to use 3 capsules daily, while women should take 2 capsules daily. Avoid consumption with dairy or calcium-containing foods or supplements to maximise effectiveness. Experience the power of Optimum Nutrition ZMA and unleash your true potential. Elevate your performance, increase muscle strength, and optimise your training with this scientifically formulated blend.