Where should hot wax be tested before application on a client?

Hot wax should be tested on the therapist's wrist before application on a client because the wrist is a sensitive area that allows the therapist to gauge the temperature of the wax accurately. This site is closer in temperature sensitivity to the facial skin or other areas where waxing might occur, providing a reliable indicator of whether the wax is too hot, too cold, or at an appropriate temperature for use on a client's skin.

Testing wax on the therapist's wrist also minimizes the risk of burning or discomfort for the client. It demonstrates a professional standard in safety practices, ensuring that the wax temperature is appropriate before it touches the client's skin. Therefore, using the wrist is a common practice among therapists to maintain client safety and comfort during waxing services.