I was a COMPLETE skeptic, when I first ordered this product, but I am a born again believer now. Within 3-4 days there was a VERY noticeable difference: Strength increase, stamina increase and libido increase. Not to sound too much like a commercial; but this product literally did everything that they claimed it would. I purposely didn’t order my a second bottle to see if there was actually a difference. Let me tell you; after about two weeks, I ordered that second bottle and will go back for a 3rd, 4th etc… I told my friends I would not recommend it until I knew for sure it wasn’t just a placebo, well friends, I highly recommend it. Even for skeptic; I say, try it. With little or no side effects, you have nothing to lose and everything to gain?
Testosterone is significantly correlated with aggression and competitive behaviour and is directly facilitated by the latter. There are two theories on the role of testosterone in aggression and competition.  The first one is the challenge hypothesis which states that testosterone would increase during puberty thus facilitating reproductive and competitive behaviour which would include aggression.  Thus it is the challenge of competition among males of the species that facilitates aggression and violence.  Studies conducted have found direct correlation between testosterone and dominance especially among the most violent criminals in prison who had the highest testosterone levels.  The same research also found fathers (those outside competitive environments) had the lowest testosterone levels compared to other males.