Zinc & Magnesium is our version of the popular trademarked supplement. We have included the same high quality ingredients to offer you the same core product at a much lower price. Various clinical studies has shown supplementing with zinc & magnesium show statistically significant differences between the zinc & magnesium & placebo groups following 8 weeks of intensive training (higher growth compound levels & greater increases in strength). Zinc & Magnesium is a combination of two essential dietary minerals (zinc & magnesium) & vitamin B6. Zinc & magnesium are usually not adequately supplied in the diet. Zinc is in the most readily available form to the body of zinc methionine; the magnesium is in the citrate form.