What is the pH range of the acid mantle?

The acid mantle is a thin film of fatty acids and lactic acid that forms on the surface of the skin, playing a crucial role in protecting the skin from bacteria, pathogens, and environmental damage. The pH range of the acid mantle typically falls between 4.5 and 5.6. This slightly acidic environment is essential for maintaining healthy skin, as it helps to inhibit the growth of harmful microbes while permitting the presence of beneficial bacteria.

Maintaining this pH range is vital for skin health, as deviations can disrupt the acid mantle's protective properties, potentially leading to skin conditions such as acne, eczema, or dermatitis. Understanding this range helps in both skincare and dermatological practices, emphasizing the importance of using products that support or match this pH level for optimal skin health.