What temperature should warm water be during a shampoo?

The correct choice is comfortably warm, not hot, to avoid scalp irritation. When performing a shampoo, the water temperature plays a crucial role in both comfort and the effectiveness of the cleansing process. Water that is too hot can lead to scalp irritation or burns, particularly for clients with sensitive skin or certain scalp conditions. It can also strip the hair of its natural oils, which can lead to dryness and damage.

Using water that is warm but not hot allows for an effective cleaning process while maintaining a comfortable experience for the client. It helps to open the hair cuticles slightly, enabling shampoos and conditioners to work more effectively without causing discomfort.

Other options suggest temperatures that either are too cold, too hot, or are neutral, which may not offer the same level of comfort and effectiveness as the recommended warm temperature. Therefore, the focus on a comfortably warm temperature is essential for both client satisfaction and the health of their hair and scalp.