Wisconsin Esthetics State Board Practice Test

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What role do enzymes play in skin exfoliation?

  1. They build up keratin proteins

  2. They produce new skin cells

  3. They break down keratin proteins

  4. They hydrate the skin

The correct answer is: They break down keratin proteins

Enzymes are biological catalysts that play a vital role in the skin exfoliation process by breaking down keratin proteins. Keratin is a key structural protein found in the outermost layer of the skin, responsible for its strength and resilience. Through the action of specific enzymes, dead skin cells that contain keratin can be effectively loosened and removed, promoting a smoother and brighter complexion. The breakdown of keratin leads to a gentle exfoliation process that helps to improve skin texture, unclog pores, and allow for better penetration of skincare products. This enzymatic exfoliation is often milder than mechanical or chemical exfoliation methods, making it suitable for various skin types, including sensitive skin. By promoting cell turnover in a more natural way, enzymes help reveal fresher, healthier skin beneath the surface.

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