When should a patch test be performed?

A patch test is a crucial step before any chemical treatment to determine if a client may have an allergic reaction to the products being used. This is especially important for procedures involving hair dyes, relaxers, or any substances that could provoke a skin sensitivity. The objective of the patch test is to apply a small amount of the product to a discreet area of the skin, allowing professionals to observe any adverse reactions that may occur within a specified time frame, typically 24 to 48 hours. If a reaction takes place, the practitioner can avoid using that specific product with the client, ensuring their safety and comfort during the service.

While it's important to prioritize safety by conducting patch tests as needed, focusing solely on occurrences sparked by client requests or making mental notes does not adequately ensure client safety or satisfaction. Regular testing is essential because sensitivities can develop over time, and relying only on past experiences or assumptions can result in unintended reactions. This highlights the need for consistency in performing patch tests as a best practice before initiating any chemical treatment.