Milady Cosmetology Practice Exam

Which layer of the skin can cosmetology professionals use products to remove dead skin?

1. Stratum Germinativum

2. Stratum Corneum

3. Stratum Spinosum

4. Stratum Lucidum

The correct answer is: Stratum Corneum

The correct answer is Stratum Corneum, as this is the outermost layer of the epidermis and is primarily composed of dead skin cells. Cosmetology professionals often focus on this layer when performing treatments aimed at exfoliation, such as chemical peels or scrubs. The products used in these treatments are designed to dissolve or slough off the dead skin cells found in the Stratum Corneum, promoting a smoother and more radiant appearance. The other layers, while important to skin health and functions, are not typically targeted for dead skin removal in cosmetology treatments. The Stratum Germinativum, for example, is the deepest layer of the epidermis, where new skin cells are generated; therefore, it is not exposed or accessible for immediate removal of dead skin. The Stratum Spinosum and Stratum Lucidum also play crucial roles in the structure and function of the skin but do not provide a practical surface for the types of exfoliating treatments offered in cosmetology.