why do you healthy kids think its' a good idea to jack your endocrine system up with pro-hormones?
to the 16 year old...GOD NO! don't take this stuff!
to the 18 year old...STOP taking it.
you're both two young to need anything like this...
and its very likely that this supplement does NOTHING beneficial as the US FDA banned any pro-hormones/steroids that actually worked. Anything left is either bunk, or will only aromatize to estrogen, giving you fat gain and bitch tits.