*Cutibacterium acnes* (formerly known as *Propionibacterium acnes*) is a skin bacterium that consumes lipids found in sebum to generate short-chain fatty acids. This metabolic activity is involved in the development of acne.

*Cutibacterium acnes*

Sebum is a lipid-rich secretion produced by the sebaceous glands within skin hair follicles. It consists primarily of triacylglycerols, wax esters, and the hydrocarbon squalene, serving as a protective barrier against moisture loss and as a nutrient source for skin microbiota.

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Glands that produce an oily, lipid-rich substance called sebum that controls microbial growth on the skin.

Sebaceous Glands

https://openstax.org/details/books/microbiology/

Microbiology covers the scope and sequence requirements for a single-semester microbiology course for non-majors. The book presents the core concepts of microbiology with a focus on applications for careers in allied health. The pedagogical features of the text make the material interesting and accessible while maintaining the career-application focus and scientific rigor inherent in the subject matter. Microbiology’s art program enhances students’ understanding of concepts through clear and effective illustrations, diagrams, and photographs.

Microbiology is produced through a collaborative publishing agreement between OpenStax and the American Society for Microbiology Press. The book aligns with the curriculum guidelines of the American Society for Microbiology.

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