Washington Esthetician State Board Practice Exam

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What are fatty alcohols?

  1. Alcohols derived from grains

  2. Fatty acids that have been exposed to hydrogen

  3. Substances that are toxic to the skin

  4. Alkaloids found in plants

The correct answer is: Fatty acids that have been exposed to hydrogen

Fatty alcohols are indeed defined as fatty acids that have been exposed to hydrogen, which transforms them into alcohols. This chemical alteration converts the long-chain fatty acids into alcohols that have emulsifying properties. They are typically derived from natural fats and oils through a process of hydrogenation, which makes them suitable for use in various cosmetic and personal care products. These fatty alcohols are known for their ability to provide moisturizing benefits, enhance the texture of formulations, and create a protective barrier on the skin without being overly greasy. The role of fatty alcohols in skincare products highlights their importance as emollients and emulsifiers, contributing to product stability and sensory feel.

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