What is the purpose of a neutralizing shampoo in hair treatments?

The purpose of a neutralizing shampoo in hair treatments is primarily to help remove residual chemicals after a relaxer. When a relaxer is applied, it alters the hair's structure by breaking down the protein bonds. Once the desired straightness is achieved, it is crucial to neutralize the relaxer to stop the chemical process immediately. A neutralizing shampoo contains specific ingredients that help restore the hair's pH balance, which is often disrupted during the relaxing process, and ensures the complete removal of any leftover chemicals. This step is essential not only for the health of the hair but also for maintaining the desired results of the relaxer, helping to ensure that the hair remains in good condition post-treatment. Other options provided do not serve this specific purpose in the context of chemical texturizing.