Also let me add. Most body builders use hcg as a post cycle with other things to make sure when they come off steroids their estrogen levels don't sky rocket, since their natural production of test will be pretty much nothing. 

Hcg basically kick starts the testicles back into production of testosterone quicker. Studies have shown people the use hcg after steroids will be back at normal levels with 3 months. People who don't use hcg will still be bellow optimal levels of test well after 6-8 months, obviously depending on dose and how long steroids were used.

I use hcg regularly, at least 2 times a year coming off steroid cycles. It helps me balance my hormones back out quicker, my test levels return to normal quicker, and helps me maintain most of what I made from the cycle of steroids.

Hope that helps.