This is a common enough concern, and the most honest answer to your question is...it depends.So, first: low T is the most common reversible medical cause for low libido. However, that does not mean it is the only cause for low libido.The most common non-medical cause for low libido is depression.If your testosterone level is in the normal range, and you aren't depressed then it is certainly possible that adding hCG may benefit you, though in our experience, the addition of hCG does not guarantee an improvement in libido. And as you said, the high cost of hCG generally means that the 'juice isnt worth the squeeze' if your goal is solely to improve libido. Interestingly, studies have shown higher LH receptor activation of the brain lowers cognition and increases the risk of Alzheimers Disease, so adding hCG long term may speed age related cognitive decline.Any benefit hCG may have on libido would likely be related to the down stream effects of two neurosteroids in the sex hormone cascade, pregnenolone and DHEA-S. There have been some correlative studies indicating that increasing the levels of these hormones may have some benefit on libido, particularly in women. The studies on libido and these hormones in men are less clear. Regardless, pregnenolone and DHEA are dirt cheap and can be purchased over the counter. We typically recommend men try these supplements if they are experiencing brain fog and/or libido issues while on TRT. I would say we see improvement in about 50-60% of men who add these to their regimen.If those don't work, as a last resort, a common trick would be to try to increase DHT. While on TRT, the addition of a low dose of oxandrolone typically does the trick by freeing up more DHT.