What is one function of the acid mantle?

The function of the acid mantle primarily involves protecting the skin’s moisture barrier, which is crucial in preventing the skin from drying and chapping. The acid mantle is a thin film of fatty acids and lactic acid that sits on the surface of the skin, helping to maintain skin hydration by preventing water loss. This barrier also supports the skin's overall health and integrity by providing a protective layer against environmental stressors, bacteria, and irritants.

While the acid mantle does play a role in skin health, its primary focus is on moisture retention rather than directly enhancing elasticity, providing thermal insulation, or strengthening blood vessels. Each of those functions is associated with other skin structures or systems. Thus, understanding the acid mantle’s role in maintaining skin hydration highlights its importance in overall skin care and health.