What is the correct pH range for skin?

The correct pH range for skin is 4.5 to 5.5. This range is important because it reflects the skin's natural acidity, which plays a vital role in maintaining the skin's barrier function and overall health. The slightly acidic nature of the skin helps inhibit the growth of harmful bacteria and pathogens, while also supporting the skin's natural moisture retention.

Within this pH range, enzymes that aid in skin function can work optimally, promoting healthy skin cell turnover and barrier repair. Maintaining the skin's pH within this range is also crucial for the effectiveness of various skincare products, as products that are too alkaline can disrupt the skin barrier, leading to issues such as irritation or dryness.

Other ranges, such as those listed in the other options, either fall outside of the recognized healthy skin pH or do not accurately reflect the natural state of skin. Overall, understanding the optimal pH range for skin emphasizes its role in health and beauty practices.