Testosterone is the primary muscle building hormone, higher levels of testosterone in the blood stream (aka free testosterone) lead to bigger muscles and lower body fat levels. The bulking and massing group of legal steroids also includes our real testosterone tabs, these are not a pro-hormone or herbal booster but a real and legal testosterone formula. Testosterone tablets are used when trying to put on mass or lose fat. These work better than the cream testosterone and users experience no side effects at normal dosages.