What role does sebum play in skin health?

Sebum plays a crucial role in maintaining skin health by providing hydration and serving as a barrier. This oily substance, produced by sebaceous glands, has several important functions. Firstly, sebum helps to keep the skin moisturized by preventing water loss from the epidermis, effectively supporting overall hydration. This is especially important for maintaining the skin's suppleness and softness.

Additionally, sebum forms a protective barrier on the skin's surface, which helps shield it from environmental stressors, such as pollutants and harmful microorganisms. By creating this barrier, sebum contributes to the skin's ability to defend itself against irritants and infections, promoting a healthier complexion.

While other options mention functions that are important for skin health, such as exfoliation, enhancing tone and elasticity, and cell regeneration, the primary and immediate role of sebum directly relates to hydration and barrier protection. These elements are essential for maintaining the skin's integrity and overall health.