Pregnyl HCG is not a steroid, but a naturally occurring peptide hormone. HCG is a glycoprotein composed of 237 amino acids and has a mass of 36.7kDa. HCG basically "acts" as Leutenizing Hormone (LH) in your body. LH is a Gonadotropin. HCG offers no potential performance enhancement in female athletes, but does prove to be very useful in male athletes especially those that use AAS. As stated above HCG in males is similar to LH, because they are similar and LH binds to receptors on leydig cells stimulating synthesis and secretion of testosterone, the use of HCG would be an added bonus to ASS users even if there is a lack of endogenous LH. Since HCG increases the bodys natural testosterone levels its use during long or extremely high dosed cycles can be most beneficial were the effects on the hypothalamus causes a depressed signal to the testicles. The result of the depressed signal leads to what is known as testicular atrophy (shrunken nuts). The use of HCG will send an artificial signal to the testes (again, as if it were actually LH), thus preventing (to some degree) atrophy. It not only helps to maintain testicular size and condition but it will also help in restoring testicles back to their original size. At a time when below normal androgen levels (due to ASS use) could become costly. Restarting natural testosterone production as quickly as possible is of a special concern in males at the end of a cycle of AAS. The price paid by bodybuilders for failing to raise natural test levels is the loss of most if not all the hard earned muscle you have gained, the main cause is cortisol. Cortisol sends a message to the muscles that is opposite to that of testosterone. If cortisol is not dealt with (because of an extremely low testosterone level) it will quickly strip away the new and hard earned muscle you have just gotten!

Some users find that they have better gains and quicker recovery while using HCG during a cycle of AAS. This first claim is more than likely due to the fact that the body has a high level of natural testosterone as well as that provided by the use of AAS, and the second may be somewhat justifiable, as stimulating the testes to secrete testosterone intermittently may aid recovery.

To be on the safe side shorter cycles of HCG seem to be that of the norm. Most users cycle HCG near the end of a steroid cycle, you should start your HCG therapy when the cycle is finished. For best results you should also run Tamoxifen while you run HCG as taking HCG by itself will do little to nothing and gyno even though rare may also flair up. Once the HCG cycle is finished you continue with your usual Clomiphene or Tamoxifen for PCT as it is more effective when used in conjunction HCG for pct. With an AAS cycle of 6 to 10 weeks HCG may not be necessary unless extreme doses of AAS were used or there is an existing problem of testicular atrophy or you are running a heavy oral only cycle. AAS cycles of 12 or more weeks should have HCG as a part of post cycle plan.

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