I've did lots of reading over the years regarding hormones and been on TRT close to 9 years with mediocre results. There's theories out there regarding backfilling pathways with these three compounds, but positive results from these seem to be very evasive at best. I have tried all three at times, either alone or in combination with only side effects. I know for certain, at least for me, that HCG doesn't budge pregnenolone, DHEA or progesterone, verified by labs. It seems HCG causes more problems in general than positive results for a good number of men including myself and the same with DHEA and pregnenolone. To my knowledge anyone on TRT will be deficient in these upstream hormones, but is that just the way for the human body to attain homeostasis with the introduction of exogenous testosterone. I'm a firm believer that the less medications {hormones} the better and for me that certainly holds true. I wonder if more men were started on TRT with testosterone only, if there would be more success. The same with anastrozole, why on earth would a physician start a patient on this with our seeing a symptomatic response and labs after several weeks. For me testosterone only seems to be the ticket. Any thoughts appreciated.