What is the recommended pH level for skin care products?

The recommended pH level for skin care products is 4.5 to 5.5 because this range closely aligns with the natural pH of human skin. Skin is slightly acidic, which helps to maintain the skin barrier function and protect against harmful bacteria and environmental stressors. Formulating products within this pH range helps to ensure they are compatible with the skin's natural microbiome, promoting health and reducing the risk of irritation or adverse reactions. Additionally, products that are too alkaline can disrupt the skin's acid mantle, leading to issues such as dryness, irritation, or increased susceptibility to infections. Therefore, choosing skin care products with a pH level between 4.5 and 5.5 supports overall skin health and functionality.