I ran it for 45 days, had to quit because of headaches. Took 2 x 3 a day, did get some good strength increase, hardness, and a constant pump. I really like it, but the headaches became a problem. I do have normal BP, didn't test while on it. Last year I went thru a 21 day cycle on Animal Stack, and also had headaches.
I'm currently on a Prime cycle, and am experiencing the same headache. I'm increasing my H2O intake, and hope I do better on Prime. I must say that I did get good results on both Animal Stack and Sterol Complex. Maybe its my old age. Anyone else with headache issues or figured out what fixes the issue?