What is the #1 supplement for increasing libido? Forget the overall T gains, just that one area.
A gorgeous girlfriend!
Seriously, my last girlfriend was so sexy I had the male equivalent to a multiple O. I analysed my diet/training/supplements at the time but I must credit her with the effect more than any programme, pill or potion. Of course, I was so damn well conditioned with the BBing that it helped - as well as returning the compliment!
Testrol worked good for me and its cheap