^it's all about genetics dude, rogaine won't help. i was blessed by the beard gods to be able to grow a full beard at the age of 19. my granddad had great beard growth, same thing with my dad and all the men on my mothers side as well. shit can be a bitch at times tho. i shave on monday morning, come tuesday 5pm i already have a full shadow. and i use a cut-throat razor.