Washington Cosmetology License Practice Exam

What is the desired pH balance for skin products?

1. 3.5 to 4.5

2. 4.5 to 5.5

3. 5.5 to 6.5

4. 6.5 to 7.5

The correct answer is: 4.5 to 5.5

The desired pH balance for skin products is typically between 4.5 and 5.5. This range is important because it aligns with the natural acidity of the skin, which helps maintain the skin's barrier function and overall health. The skin’s natural pH is slightly acidic, which plays a critical role in protecting against bacteria and other pathogens, as well as preventing moisture loss. Using products that fall within this pH range helps to support the skin's natural functions and can minimize issues like irritation or sensitivity that may arise from products that are too alkaline or acidic. Such balance is particularly crucial in skincare formulations, as it can affect the efficacy and safety of the products. Maintaining proper pH levels ensures that the skin barrier remains intact, enhancing hydration and overall skin health.