What is a chemical peel?

A chemical peel refers to a cosmetic procedure in which a solution is applied to the skin to exfoliate and remove the outer layers, promoting regeneration and improving the skin’s appearance. Specifically, option C accurately describes this process as a form of chemical exfoliation, typically performed using nonprescription solutions that can include alpha-hydroxy acids or beta-hydroxy acids. These peels help in treating various skin concerns such as acne, pigmentation, and fine lines by shedding dead skin cells and promoting the growth of new, healthier skin.

In contrast, other options do not adequately capture the essence of a chemical peel. For instance, the notion that it is a process to hydrate the skin does not reflect the primary purpose of a chemical peel, which is to exfoliate rather than hydrate. Similarly, while it may contribute to the cleaning of the skin's surface, stating it is merely a means of cleaning oversimplifies its role and benefits. Lastly, the description of removing deep skin layers surgically pertains more to procedures like dermabrasion or surgical techniques rather than the non-invasive chemical peel approach, which targets superficial layers of skin.