The primary purpose of shampooing a client's hair is to

• A. Condition the hair
• B. Detangle hair
• C. Moisturize scalp
• D. Cleanse the hair and scalp

Answer: (D)

Shampooing is mainly about cleansing the hair and scalp. Surfactants in shampoo bind to oil, dirt, and product residue and, with rinsing, wash them away. This cleansing step helps keep the scalp healthy by removing sebum, sweat, pollutants, and buildup, and it creates a clean foundation for conditioning and styling. Detangling, moisturizing the scalp, and conditioning the hair are handled by other products or steps—detangling is typically a function of conditioner or detangling sprays, moisturizing the scalp comes from scalp treatments or oils, and conditioning the hair adds moisture and smoothness after washing. So, cleansing the hair and scalp is the primary purpose.