What is the primary purpose of a skin patch test in PMU?

The primary purpose of a skin patch test in permanent makeup is indeed to determine if a client has any allergic reactions to pigments or anesthetics. This test is crucial because it helps identify any sensitivities or allergies that could lead to adverse reactions during or after the procedure. By conducting a skin patch test prior to the application of permanent makeup, the artist can ensure that the selected pigments and anesthetics are safe for the client, thereby minimizing the risk of complications such as irritation or severe allergic responses.

In this context, understanding a client's skin type, evaluating the healing process of previous tattoos, or deciding the final color of the pigment are important aspects of the PMU process but are not the primary focus of the skin patch test. These other factors may be addressed at different points in the consultation and application process, but they do not serve the essential purpose of ensuring that the materials used are safe for the individual.