Im on 600mg test cyp every 5 days and went for labs and PSA was at 0.81 with reference range being 0.00-4.00. Thats pretty much perfect. Time before that was 0.93. When i was taking 600mg Test Cyp every 4 days. So as you can see i dont get elevated PSA levels running 600-1000mg test cyp every 4-5 days.