When should a patch test for a lighter service be performed?

A patch test for a lighter service, such as bleaching, is vital to assess the client’s skin sensitivity to the chemicals involved in the process. Performing a patch test helps in identifying any potential allergic reactions or adverse effects that could occur from using the product on the scalp or hair.

The appropriate timing for conducting a patch test is typically 24 to 48 hours before the actual service. This allows sufficient time to observe any reactions that may develop. While the option suggesting that a patch test should be performed "never for bleach" indicates concerns about potential chemical burns, the emphasis on the importance of assessing sensitivity before the application remains critical.

By performing the patch test ahead of time, it not only provides safety for the client but also ensures that the stylist can confidently proceed with the service without the risk of an unexpected allergic reaction during or after the procedure. Therefore, the assertion that a patch test should never be performed is misleading, as it underestimates the necessity of safety protocols in hair design practices.

Overall, a patch test is a standard safety measure that should not be overlooked, and the proper timing plays a crucial role in ensuring the health and well-being of the client when undergoing chemical treatments.