Human Chorionic Gonadotropin (From the book Testosterone: A Mans Guide, amazon.com) Human chorionic gonadotropin (HCG) (not to be confused with human growth hormone, or HGH) is a glycoprotein hormone that mimics LH (luteinizing hormone), produced in pregnancy by the developing embryo soon after conception, and later by part of the placenta. Its role is to … Continue reading The Use of HCG to Prevent / Reverse Testicular Shrinkage and Preserve Fertility