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What role do active agents play in skin treatments?

  1. Change the texture of the skin

  2. Cause changes in the skin

  3. Provide hydration

  4. Act as a preservative

The correct answer is: Cause changes in the skin

Active agents play a significant role in skin treatments primarily by causing specific changes in the skin. These agents are formulated with the intention of delivering targeted effects, enhancing skin health, and addressing various skin concerns. For example, ingredients like retinoids can stimulate cell turnover, leading to improved texture and reduced signs of aging. Similarly, alpha hydroxy acids (AHAs) promote exfoliation, effectively improving the appearance of the skin over time. While active agents may also contribute to aspects like hydration or altering skin texture, their fundamental purpose is to instigate biochemical changes that improve overall skin condition. The other options, although relevant in the context of skin care, do not capture the core function of active agents as effectively as the correct choice does.