Yasmine Ishmael, Chief Scientist of NIUCOCO, was asked by Reader's Digest how to solve common mistakes people make when washing their hair.
"Shampoo from the top down. Most people apply shampoo to the roots and lather, and then apply additional shampoo to the rest of the hair. Instead, apply shampoo to the scalp and massage into a lather. Work the product down the hair to the ends without applying additional shampoo. Hair tends to be dirtiest on the roots and drier on the ends, so this is a good way to treat dry ends."
You can read more on how to avoid common washing mistakes here.