Is it possible to perminently mess up your endocrine system if you take tribulus at a young age, say, 17 or 18? thanks.
if you did a search i believe the consensus was that tribulus and Alpha Male, will not screw you up in any way. They simply put you at the threshhold of your bodies T capacities. Being 18, you are probably already at that limit, and any supplementation is probably useless. I say probably because there may be other factors that do not allow for maximum realization of your T levels and there may be use for tribulus in your body.
run a search function for more answers.