I've heard there are vitamins you can take, but I would ask a doctor about that first so you can avoid overdose, and somebody once told me that cold shower water helps it grow more, and hot water makes it shinier. Not a fact, but still. And avoid hot tools like a straightener, because it will eventually start killing your hair and you'll have lots of split ends. Avoid split ends by having your hair regularly TRIMMED. I'd say a little less than an inch. Also, dying your hair isn't the best idea. It'll kill your hair and that's obviously not good.