Nolvadex is a anti estrogen and will not work to restore your natural prduction, maybe in extremly high dossages. Proviron and clomid will also work but proviron will not jump start it either and all drugs will produce side effects. HGC is not know to produce side effects like the other guy said about acne and all, that is something I have never heard, nor ever read anywhere. HGC/Clomid is your best bet to get your body back to normal to retain as much of your gains as possible. Everyone I know who uses AS follow up with thier post cycle using Hcg/clomid including myself and have all kept abvout 90% or more of thier gains.