Colorado Esthetician Written Practice Exam

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Study for the Colorado Esthetician Written Exam. Prepare with flashcards and multiple-choice questions, each with hints and explanations. Get ready for your esthetician license!

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What does the skin's hydrolipidic film protect against?

  1. Absorption of UV rays

  2. Evaporation of water and external environmental damage

  3. Production of melanin

  4. Synthesis of Vitamin D

The correct answer is: Absorption of UV rays

The skin's hydrolipidic film acts as a protective barrier that helps prevent the absorption of harmful external substances, including UV rays. This film is made up of a combination of sebum and sweat, which helps to maintain the skin's natural pH balance and protect against moisture loss, pathogens, and environmental damage. Therefore, Option A is correct because the hydrolipidic film plays a crucial role in shielding the skin from the damaging effects of UV rays.

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