I got some generic blue tops, and started with 2ius ed before working out. Didn't really see any difference at 1 month, so I took it up to 4 ius, and now I'm getting vascular, I can leterally eat anything and still stay lean, my hands and wrists are swelling and I get a tingling sensation like they are going to sleep at night and sometimes during the day. It just depends on how your body reacts to it. I dont think I"ll order any more after mine runs out, because its' just too damn expensive and yoou really need to be on it for at least 3 months to see any results.