Medically speaking we (I administer) and doctors prescribe HCG as HRT and they also prescribe it on cycle
The reason being is that HCG at 900iu total per week in studies was shown to keep intracellular testosterone levels in range
Now we also see that it improves sex drive, libido, sperm count and ejaculatory volume in users, whether on cycle or not
On cycle it has been proven that PCT is easier to return when you come off cycle. For instance the average male takes 2-12 months to return HPTA. The variables are age, health and cycle history
Being on HCG during a cycle or during HRT will help you return HPTA quicker
WHen I say being on. The common dose is 250-500iu 2-3x per week
The problem is alot of doctors have zero clue how to prescribe and fertility doses are used. I have seen 5-10Kiu used per week and this is wrong
This will damage the testes long term.