sebum

noun

se·​bum ˈsē-bəm How to pronounce sebum (audio)
: fatty lubricant matter secreted by sebaceous glands of the skin

Examples of sebum in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Yes Best For: Geared toward creating a healthy microbiome, the product is designed to remove buildup, promote healthy sebum production, and reduce flakiness on the scalp. Jenny Berg, Vogue, 4 Feb. 2025 The researchers say engineers could use the ingredients found in polar bear sebum to create safer products. Sara Hashemi, Smithsonian Magazine, 31 Jan. 2025 This $20 bottle of Miracle Clear Complete Acne Serum provides a skin-loving balance of exfoliants (salicylic acid) and anti-inflammatory, calming ingredients (succinic acid, niacinamide, and zinc PCA) that also help regulate sebum production. Sarah Han, Allure, 29 Jan. 2025 Additionally, Accutane works by decreasing the production of sebum, or oil, which works well to clear acne but can also negatively affect hair growth. Leslie Baumann, Miami Herald, 29 Jan. 2025 See all Example Sentences for sebum 

Word History

Etymology

Latin, tallow, grease

First Known Use

circa 1860, in the meaning defined above

Time Traveler
The first known use of sebum was circa 1860

Dictionary Entries Near sebum

Cite this Entry

“Sebum.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sebum. Accessed 19 Feb. 2025.

Medical Definition

sebum

noun
se·​bum ˈsēb-əm How to pronounce sebum (audio)
: lubricant matter that is secreted by sebaceous glands of the skin and is composed of various lipids (such as triglycerides, fatty acids, and squalene)
Androgens, such as testosterone, play a role in the development and exacerbation of acne by stimulating the production of sebum.Isabella Tan, Dermatology Times
… the resulting production of sebum from sebaceous glands aids in lubrication, heat insulation, … antimicrobial activity, and delivery of fat-soluble antioxidants to the skin surface.Dustin H. Marks, American Journal of Clinical Dermatology
see sebocyte

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