Rinse your hair for a minute before you start applying shampoo. Abramite suggests. “You need to give the water enough time to start rinsing out some of the product residue and prep the hair for shampoo.” Then rinse off the shampoo well. “If your hair is falling flat or you have irritation on your scalp, it’s highly likely that you didn’t wash out the entire product in the shower”, says Abramite.