Utah Esthetician State Board Practice Exam

Which skin layer is primarily affected by a light peel?

1. Stratum Corneum

2. Stratum Granulosum

3. Stratum Lucidum

4. Dermis

The correct answer is: Stratum Corneum

A light peel primarily affects the stratum corneum, which is the outermost layer of the skin. This layer is composed of dead skin cells that create a protective barrier for the underlying tissues. Light peels typically utilize mild exfoliating agents, such as alpha-hydroxy acids (AHAs) or beta-hydroxy acids (BHAs), which work to gently remove these dead skin cells without penetrating deeply into the skin. The main objective of a light peel is to improve overall skin texture and tone, alleviate dullness, and promote cellular turnover by clearing away the surface layer of dead cells. This method is generally considered safe for most skin types and has minimal downtime, making it a popular choice for both estheticians and clients seeking subtle enhancements to their skin’s appearance. The other layers, such as the stratum granulosum, stratum lucidum, and dermis, are either deeper within the skin structure or function differently, which is why they are not typically the primary focus of light peels.