My Hair Growth Challenge App will bring challenge participants together from all over the world. For natural hair lovers, the big chop, transitioning users and more. Upload your personal hair challenge profiles to Facebook, Twitter, email and the private Hair Growth Challenge Group. Share your unique regimens, add special products used, and progress photos. Calculate your hair growth with our hair growth predictor tool. Meet new challenge users and invite your own friends. View other's special regimens for healthier hair and faster hair growth.