What is one of the functions of sebum on the skin?

Sebum plays a crucial role in maintaining skin health, and one of its primary functions is to lubricate the skin. This natural oil is produced by sebaceous glands and helps to create a barrier on the skin's surface, preventing the skin from becoming dry and ensuring that it retains moisture. By providing this lubrication, sebum helps to keep the skin soft, supple, and protected from environmental factors that could lead to irritation or damage.

In terms of overall skin health, the lubrication provided by sebum is essential for maintaining a balanced moisture level, which can also help in preventing various skin conditions that may arise from excessive dryness.