What is the main function of sebum in the skin?

Sebum plays a crucial role in maintaining the health and integrity of the skin. Its primary function is to lubricate the skin, creating a barrier that helps to prevent moisture loss. This oil, produced by sebaceous glands, not only keeps the skin hydrated but also provides a protective layer against environmental factors such as bacteria and pollutants. By lubricating the skin, sebum contributes to its overall softness and smoothness, which is essential for maintaining healthy skin.

While preventing infections is an important aspect of skin health, this is not the main function of sebum. The role of promoting cell regeneration and increasing skin elasticity, while valuable, are not directly associated with the primary purpose of sebum. Instead, these functions are influenced by other factors such as proper nutrition, hydration, and the presence of various skin care ingredients.