The purpose of washing one's hair with a neutralizing shampoo is to remove all traces of certain chemicals, bringing the hair back to its normal pH level. Many products used on a regular basis can change the natural pH balance of one's hair, including hair coloring products , hair sprays and hair gels.

Using neutralizing shampoo after the application of hair relaxers helps remove all traces of the chemical and restore hair back to its normal pH level for healthier hair growth. Always read the instructions on the neutralizing shampoo before use, because they are not all the same.