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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How do moisturizers benefit the skin's barrier layer?

  1. By increasing circulation and metabolism

  2. By protecting it from sun damage

  3. By sealing in moisture and providing hydration

  4. By using concentrated corrective ingredients

The correct answer is: By sealing in moisture and providing hydration

Moisturizers benefit the skin's barrier layer by sealing in moisture and providing hydration. This action helps in maintaining the skin's natural moisture levels, resulting in a better barrier function. Adequately moisturized skin is more effective at preventing water loss and protecting against external irritants. Therefore, choosing a moisturizer that can seal in moisture will improve the overall health and appearance of the skin.