All of us suffer ANDRO-GENIC alopecia.
As the same word suggests, the androgens cause alopecia if your genes are predisposed for hair loss.
That said, do exogenus androgens cause hair loss?
we need to distinguish:
1) super high androgens in the body will cause some hair loss. The hair loss will be more or less aggressive according to our genetic.
2) TRT (please, read this very carefully)
Have you ever noticed that old man with low test start to lose hairs?
The thing was really strange to me, so I tried to find some researches on this topic. I didn't find a lot but a found an interesting study that supposed that, because low test and high aromatase activity (i.e. high estrogens), the body increases 5AR activity to compensate the loss in testosterone and the increase in estrogen. The study concluded that this could lead to SENILE HAIR LOSS.
That said, if this is true, we can suppose that low test can lead to hair loss as well as high test because both lead to high DHT.
Thus, TRT can improve hair quality.
Some days ago I watched a video by Kevin Mann on youtube (if you do not know who he is, look for him).
He is very passionated in bodybuilding and hair loss and he reported that some bald guys he knew regrowth their hairs on TRT.
quite interesting, uh?!