Tren is an extremely androgenic hormone, and as a result well known for promoting androgenic side effects. Hair loss and acne in men who are predisposed are both possible. Body hair growth is also possible. If you are not genetically predisposed no amount of Tren on earth with cause these issues. The androgenic side effects of Tren are truly based on genetic response. When it comes to hair loss, if you are predisposed to male pattern baldness, meaning at some point you’re going to lose your hair regardless of steroid use , Tren is one of the fastest ways to ensure you lose your hair a little sooner.
Virilization is a serious androgenic side effect of Tren. It is very difficult for a woman to use Tren without some level of virilization and makes it a steroid that’s almost never recommended for female use.
Important Note: The 5-alpha reductase enzyme does not metabolize the Trenbolone hormone. This means 5-alpha reductase inhibitors like Finasteride will not affect the androgenicity of the hormone.
That being said, it has been shown to induce signal transduction and possibly act on the same receptors that testosterone does, thus exerting testosterone like effects in the body independent of testosterone levels. Which is plausible given the structural similarity of ecdysterone and testosterone (although ecdysterone’s small structural changes do result in large changes in its actions in the body; its wholly plausible that the opposite notion of no interaction is true as well). That, and it does increase protein synthesis directly .[x]