Milady Esthetics State Board Practice Test

Products that contain vitamin A or alpha hydroxy acids primarily reduce signs of aging by?

1. Restricting moisture loss

2. Stimulating cell turnover

3. Blocking UV rays

4. Enhancing skin texture

The correct answer is: Stimulating cell turnover

Products that contain vitamin A or alpha hydroxy acids primarily reduce signs of aging by stimulating cell turnover. This process involves the shedding of old, dead skin cells and the promotion of new cell growth, which helps in rejuvenating the skin. As dead skin cells are removed, it uncovers fresher, younger skin that can improve the overall appearance and texture of the skin. Stimulating cell turnover is crucial for combating signs of aging such as fine lines, wrinkles, and uneven skin tone. Vitamin A, particularly in forms like retinoids, is known for its effectiveness in enhancing cellular regeneration. Similarly, alpha hydroxy acids, such as glycolic acid, increase the exfoliation process and help improve skin texture, making it smoother and more radiant. While the other options mention important aspects of skin health, they do not primarily address the specific action of reducing signs of aging through the mechanisms of these ingredients. For example, restricting moisture loss and blocking UV rays are essential for maintaining skin health but do not specifically pertain to the cellular processes involved in combating aging. Enhancing skin texture is a result of cell turnover but doesn’t capture the primary mechanism of action of these ingredients as effectively as stimulating cell turnover does.