What is the purpose of patch testing before laser treatments?

The purpose of patch testing before laser treatments is primarily to assess skin response and reduce the risk of adverse effects. This testing involves applying a small area of the skin to a laser treatment to observe how it reacts. By doing so, practitioners can identify any abnormal responses, such as increased sensitivity or allergic reactions, which could lead to complications during the actual treatment.

Conducting patch tests helps in customizing the laser parameters for individual patients, ensuring a safer approach tailored to their specific skin type and condition. It also allows practitioners to gauge how the skin interacts with the laser energy and to preemptively address any potential issues that may arise in more extensive or delicate areas during the full treatment.