According to regulations, a cosmetologist or esthetician must limit exfoliation to which part of the skin?

Exfoliation in the context of cosmetology refers to the process of removing dead skin cells from the surface of the skin, which is primarily associated with the outermost layer known as the stratum corneum. This layer consists of dead skin cells that can accumulate and contribute to an uneven texture or dull appearance if not properly managed.

By limiting exfoliation to the stratum corneum cells only, practitioners ensure a safe and effective approach, minimizing the risk of damaging deeper layers of the skin. Exfoliating too aggressively or targeting layers such as the dermis or basal layer could lead to irritation, sensitivity, or even long-term skin damage. Regulations emphasize the importance of understanding skin anatomy and ensuring that treatments are both safe and beneficial for clients. Thus, focusing on the stratum corneum allows cosmetologists and estheticians to enhance skin health while adhering to established safety standards.