ZMA PLUS is for magnesium supplementation facing issues like muscle cramps, tingling or numbness in limbs and muscular aches which are often signs of low magnesium levels in the body. It supports in boosting muscle recovery, helps gain muscle size & power. Tribulus has strength-enhancing properties and also used as a body-building supplement. Zinc is important for growth and for the development and health of body tissues. Melatonin is also a powerful antioxidant. Vitamin B6 also provides healthy immune system.