®®<span style="\\"color:" rgb(129,="" 129,="" 129);="" font-family:="" helvetica,="" arial,="" sans-serif;="" font-size:="" 14px;="" line-height:="" 22.6520004272461px;="" orphans:="" 3;="" widows:="" 3;\\"=""> is a powerful, 100% natural supplement that has been clinically proven to increase free testosterone, total testosterone and insulin-like growth factor (GF-1) levels. It also heightens muscle strength in training athletes. Its synergistic combination of zinc, magnesium, and vitamin B-6 is designed to enhance muscle strength, endurance, healing and recovery after exercise.