I agree^^ It takes about 2 weeks for it to start kicking in. If you got a hold of TNA from Usp labs, this would be a good addition as well, since its a direct natty test booster. Prime doesnt work through the testosterone route, but it will help you to keep your gains. If you want to go even further, or if you dont have TNA, try Phyto-Testosterone Caps from Primordial Performance.