Name an ingredient commonly used in topical anesthetics for PMU.

Lidocaine is widely used in topical anesthetics for permanent makeup procedures due to its effectiveness as a local anesthetic. It works by blocking nerve signals in the area where it is applied, which helps to minimize pain during procedures such as tattooing the eyebrows, eyeliner, or lips. Lidocaine is preferred in many clinical settings because it provides rapid onset of numbness, typically within a few minutes, and has a well-documented safety profile when used appropriately. Its widespread use in a variety of medical and cosmetic applications underscores its reliability and efficacy in managing discomfort associated with skin procedures, including PMU.

While other options may be related to local anesthesia, they are less commonly employed in this specific context or may have different indications or formulations that make them less suitable for use as topical anesthetics in PMU procedures.