Do any of you have any tips or tricks to growing hair faster? Are their any vitamins, shampoos, conditioners, hair treatments, or anything that makes hair grow faster? Also is their anything you shouldn’t do? I mean things that will make hair grow slower. Please help. Me and my sister went to get our hair cut today and I love mine, but she hates hers. She went from waist length hair to shoulder length. She hates it and wants long hair again. How can she make hair grow faster?