squalene

noun

squa·​lene ˈskwā-ˌlēn 

: an acyclic hydrocarbon C₃₀H₅₀ that is widely distributed in nature (such as a major component of sebum and in shark-liver oils) and is a precursor of sterols (such as cholesterol)

Examples of squalene in a Sentence

Recent Examples on the Web

The addition of squalene provides deep hydration and moisture. —Jenny Berg, Vogue, 31 Oct. 2024

Therefore, the brand blended their pure retinol complex with nourishing and hydrating ingredients like ceramides, peptides, glycerin, shea butter and squalene to create a formula that could be used daily without irritation. —Jackie Fields, People.com, 1 Oct. 2024

The product is enriched with vitamin C and squalene to hydrate and nourish your skin without overwhelming it. —Savannah Smith, Rolling Stone, 24 Sep. 2024

The researchers also found an oil, a type of squalene, also with antioxidant properties that may have been applied topically to lubricate and protect the skin. —Grrlscientist, Forbes, 27 Sep. 2024

Word History

Etymology

International Scientific Vocabulary, from Latin squalus, a sea fish — more at whale

First Known Use

1916, in the meaning defined above

Medical Definition

squalene

noun

squa·​lene ˈskwā-ˌlēn 

: an acyclic hydrocarbon C₃₀H₅₀ that is widely distributed in nature (as a major component of sebum and in shark-liver oils) and is a precursor of sterols (as cholesterol)