Riboflavin
If you dont know whear it is, then quit smocking CRACK. & look on the left side of youre battory.
If your finger nails are cracking, soft or have a white line means that you dont have enough calsuim and taht means that you dont eat/drink enough dairy products
Because the calceiam in the milk helps youre bones stay strong so you dont get brital bone desease
hahahaha! NEVER! but if u must "take" crack, one hit a minute is not enough. good luck! really tho, if you have to ask how often you "take" crack, i am begging you, please dont do it, its not worth it.
i dont no that is why i am asking
you dont unless youre victorious
??? ???
i dont know what youre talking about
no it really isnt but dont do it in front of youre classmates couse they will think youre a total wierdo
i dont know ask youre grandad
i dont know but i know that youre gay
i dont understand your question! sucker