Pro Series Hardcore ZM8 - the BEST ZINC MAGNESIUM B6 ZMA CAPSULES - The minerals zinc and magnesium have a number of important functions in the body. Zinc has been strongly linked to the production of testosterone, a hormone that plays a vital role in regulating muscle growth. In addition to its effect on testosterone, zinc has also been shown to increase levels of growth hormone and IGF-1. Both are essential for increasing muscle size. Magnesium is also an essential mineral that is involved in more than 300 chemical reactions in the body including the oxidation or 'burning' of fat. Unfortunately, most people don't get enough of these minerals in their diets. Clinical trials show that after just 14 days of supplementation, subjects showed an impressive increase in muscular strength and endurance. Even in men just moderately deficient in zinc, 30 milligrams daily was enough to double testosterone levels in only six months. These are PRO SERIES CAPSULES each with 260mg ZINC (Sulphate, Citrate and original ZMA Powder) 213mg Magnesium (Citrate) and 12mg Vitamin B6. 120 Capsules in a re-seable mailbox friendly pack.