Hey everyone.  I am 15 years old and I will love to have long hair.  My hair is about 1-2 inches past my shoulders.  I would love my hair to be at least bra strap lenght or an inch to it by February 19 on my birthday.  So, I take a Centrum's vitamin.  I would like to know which vitamins are good for the hair to grow long and strong.  Thank you for your time and answers.