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)
Example Sentences
Recent Examples on the Web After analyzing genetic sequencing, Tran Do, an M.D.-Ph.D. student and lead author of the paper, had the idea to put squalene directly into the dish with the regular macrophages. 
Isabella Cueto, STAT, 23 July 2022 Supporting ingredients include CoQ10, Vitamin E, squalene, rosehip oil and others delivered into pores via Ignae’s proprietary EPC Factor complex that combines algae and plant extracts for ultimate skin regeneration. Margaux Lushing, Forbes, 2 May 2022 What the Trem2 macrophages can’t accomplish, benzoyl peroxide can: overcoming the squalene’s oxygen radical-absorbing trick to kill acne bacteria. Isabella Cueto, STAT, 23 July 2022 Its ingredients include hyaluronic acid, caffeine, peptides, botanicals, squalene, and vitamin C, which tighten and brighten skin, improve circulation, provide moisture, and support collagen production. Grooming Playbook, The Salt Lake Tribune, 3 June 2022 The essence is a milky-oil hybrid with key rose botanic—a rose blend packed with phytonutrients—along with fortifying rose petal extract, soothing damascena rose water, sweet almond oil, squalene, and hydrating botanical ceramide. Ariana Yaptangco, Glamour, 3 June 2022 Health is a concern as well as squalene — a compound in shark liver oil commonly found in skin-care products — is highly unregulated. Evan Nicole Brown, The Hollywood Reporter, 2 June 2022 Like a facial in a dropper, this luxuriously lightweight oil is formulated with a combination of shelf-stable vitamin C, squalene, and chios crystal and rose oils, which all work together to intensely hydrate, brighten, and firm skin at once. The Editors, Town & Country, 31 May 2022 Formulated with squalene and shorea butter, two skincare ingredients known for hydration, the bio-retinol cream can be applied nightly after cleansing. Lauren Rearick, Travel + Leisure, 8 Jan. 2022 See More
Isabella Cueto, STAT, 23 July 2022 Supporting ingredients include CoQ10, Vitamin E, squalene, rosehip oil and others delivered into pores via Ignae’s proprietary EPC Factor complex that combines algae and plant extracts for ultimate skin regeneration. Margaux Lushing, Forbes, 2 May 2022 What the Trem2 macrophages can’t accomplish, benzoyl peroxide can: overcoming the squalene’s oxygen radical-absorbing trick to kill acne bacteria. Isabella Cueto, STAT, 23 July 2022 Its ingredients include hyaluronic acid, caffeine, peptides, botanicals, squalene, and vitamin C, which tighten and brighten skin, improve circulation, provide moisture, and support collagen production. Grooming Playbook, The Salt Lake Tribune, 3 June 2022 The essence is a milky-oil hybrid with key rose botanic—a rose blend packed with phytonutrients—along with fortifying rose petal extract, soothing damascena rose water, sweet almond oil, squalene, and hydrating botanical ceramide. Ariana Yaptangco, Glamour, 3 June 2022 Health is a concern as well as squalene — a compound in shark liver oil commonly found in skin-care products — is highly unregulated. Evan Nicole Brown, The Hollywood Reporter, 2 June 2022 Like a facial in a dropper, this luxuriously lightweight oil is formulated with a combination of shelf-stable vitamin C, squalene, and chios crystal and rose oils, which all work together to intensely hydrate, brighten, and firm skin at once. The Editors, Town & Country, 31 May 2022 Formulated with squalene and shorea butter, two skincare ingredients known for hydration, the bio-retinol cream can be applied nightly after cleansing. Lauren Rearick, Travel + Leisure, 8 Jan. 2022 See More 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)