USN ZMAG is a great product for anyone who is into fitness and working out. It is a high quality supplement made to benefit the user. USN ZMAG contains ingredients such as Vitamin B6, Zinc and Magnesium. These ingredients may help with support muscle strength and endurance, hormone levels and reduce fatigue. USN ZMAG provides you with 20mg of Zinc, 500mg of Magnesium and 15.6mg of Vitamin. All shown to help with different processes of the body.