We rounded up the best of the best from Instagram and here are 21 hair hacks that every girl should know. We've got tricks for growth, shine, curl, and more. Plus most of them are pretty easy to do! Hair Tutorials, Hair Hacks, Easy Curls, Hair Tutorials For Medium Hair, Hair Lengths, Easy Hairstyles For Medium Hair, Hairstyles For Thin Hair, Easy Hairstyles For Long Hair, Easy Medium Hairstyles