For me there may be some correlation between progesterone use and the quality and frequency of nocturnal erections. Effects on libido seem transitory. The most obvious positive effects are on mood and sleep. More subtly, there's the reduction in estrogenic activity, which can be good or bad, depending on the circumstances. I think supplementation is worth trying for anyone who has low levels. As with all hormones, too much is going to be a problem; without better knowledge it seems prudent to target mid-range serum levels.
Libido is obviously a complex phenomenon. A lot of things need to be working right to have it. I've speculated previously that the complexity of generating erections acts as a genetic fitness test of sorts. The concept might be extended to libido: Is it a test for properly functioning hormones and neurotransmitters? In any case, TRT disrupts several upstream hormones, and I've found that at least for me the loss of LH and GnRH contributes to reduced libido.
I appreciate the post. Is there a company you trust in regards to HCG overseas?? The name that I used was "ZyhCGHP" Marketed by "German Remedies" Orange lettering and packaging on vial. Is there a way to tell if it's potent or working?? My doctor refuses to write a prescription for HCG.
I can't tell if it's working or not? When I stopped using it about 5 months ago. I noticed fatigue... no desire to really do anything. I haven't even been going to the gym as consistent. As in sexual function... I don't feel my libido changed much while using it? Thanks for your previous post! You're a big help! Much appreciated!