Just came across this
What about HCG?
Many bodybuilders are attracted by HCG or gonadotropin. This hormone is supposed to stimulate the shrunken testes into growing back and recovering their normal rate of testosterone production. I would seriously encourage bodybuilders to avoid this drug. It is extracted from the urine of pregnant women. Even if we are told it has been purified, how would you feel learning in 20-30 years that there was this little something that scientists haven't uncovered until now and that is killing people? Until HCG is completely synthetic, I would be careful about it. Its usefulness is questionable anyway. If your cycle was very strong, you are likely to be relatively insensitive to HCG. If your cycle was mild, you should be able to go off without it. If in this situation, you feel a need for it, it means you've messed up somewhere. Additionally, HCG is a potent gyno builder, especially when estrogen level is high because of past testosterone consumption."
Grow Even When Off Steroids! Part 1 by Dharkam
and on a different note...
do people inject into their hamstrings?