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 homemade moisturizer recipe combines beef tallow and beeswax melted together over a pot of boiling water, then mixed with squalene and jojoba oil. —Ryan Brennan may 5, Kansas City Star, 5 May 2026

Not only does the product neutralize dark circles, but its mixture of hyaluronic acid and squalene leads to ultra-hydration. —Izzy Baskette, PEOPLE, 22 Apr. 2026

The formula is packed with nourishing ingredients, including prebiotics, hyaluronic acid, apple, watermelon, peptides, and squalene. —Melony Forcier, InStyle, 25 Feb. 2026

The lightweight, deeply hydrating and nourishing cream has antioxidants, squalene, and ceramides. —Brianna J. Heath, Essence, 20 Jan. 2026

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)