in an 8 week cycle i would use hcg 500iu's ed from week 3 onwards untill last shot then stop. However if I wasnt doing that I would be using it 500iu's ed for weeks 6&7 this according to Bill R helps post cycle recovery time personaly I like my balls to be big and healthy my mind plays enough tricks on me so one less thing to look at is better for me and I have had good results with it doing its job

peace
jason