Testroxin Gel. We all know testosterone makes you big, makes you strong, and makes you ripped. But, unlike run-of-the-mill pro-hormone capsules, powders, and tablets, the new topically applied, androgen-saturated gel preparations give you all the benefits of testosterone without the embarrassment of estrogen-induced female characteristics. Thats because topical androgen gels bypass enzymatic degradation in the gastrointestinal tract, preventing conversion of androgens (male hormones) into estrogens (female hormones)... specifically estradiol (one of the female hormones responsible for gynomastia [man-breasts] and reduced sexual function). No wonder topical androgen gels have taken over the bodybuilding market.