Final answer:
To address product build up noticed during hair shampooing, the stylist should use a clarifying shampoo with strong surfactants. This type of shampoo will thoroughly cleanse the hair. It's important to condition the hair afterward to reintroduce moisture.
Step-by-step explanation:
When shampooing a client, a stylist may encounter product build up on the client's hair. In such cases, it would be advisable to use a clarifying shampoo specifically designed to remove build-up. These shampoos contain surfactants such as sodium lauryl sulfate or sodium laureth sulfate, which act as heavy-duty cleansers to effectively remove the accumulated product, grease, and oil from the hair and scalp.
A clarifying shampoo can be used for this purpose, as its formulation is stronger and more effective at eliminating product residue compared to regular shampoos. However, it should be used sparingly to avoid stripping hair of its natural oils excessively. After using a clarifying shampoo, the stylist can follow up with a suitable conditioner to restore moisture and manageability to the hair.