Which of the following should be used when massaging the client's scalp during a scalp massage?

When performing a scalp massage, the use of fingertips is essential due to their sensitivity and precision. Fingertips allow for a gentle yet effective pressure that can stimulate the scalp effectively, promoting circulation and relaxation. This technique can help relieve tension, enhance the client's overall experience, and contribute to the health of the hair and scalp.

Using palms may not provide the same level of focused stimulation on the scalp, as the surface area is larger and less precise in applying pressure to specific points. While knuckles can offer a different kind of pressure, they are not suited for the delicate nature of a scalp massage. Forearms are generally too large and lack the finer control needed to work on the sensitive scalp area effectively.

Thus, the fingertips are the optimal choice for a relaxing and beneficial scalp massage, facilitating effective techniques that can enhance the client's overall salon experience.