sebum
Definitions
An oily secretion of the sebaceous glands that lubricates the skin and hair.
A fatty, waxy substance produced by the body to protect and waterproof the skin.
Examples
Excessive production of sebum can often lead to clogged pores and acne breakouts.
The natural sebum secreted by the scalp helps to keep hair hydrated and healthy.
Dermatologists often recommend gentle cleansers to remove excess sebum without stripping the skin of its moisture.