Za młody raczej na booster jesteś. Poza tym:
The extract is claimed to increase the body's natural testosterone levels and thereby improve male sexual performance and help build muscle. Its purported muscle-building potential was popularized by American IFBB bodybuilding champion Jeffrey Petermann in the early 1970s. However, T. terrestris has failed to increase testosterone levels in controlled studies. It has also failed to demonstrate strength-enhancing properties, a finding indicating that the anabolic steroid effects of Tribulus terrestris may be untrue. Some users report an upset stomach, which can usually be counteracted by taking it with food.
Tyle jeśli chodzi o tribulusa, lepiej już DAA