biotin

noun

bi·​o·​tin ˈbī-ə-tən 

: a colorless crystalline growth vitamin C₁₀H₁₆N₂O₃S of the vitamin B complex found especially in yeast, liver, and egg yolk

Examples of biotin in a Sentence

Recent Examples on the Web

In addition, Tracee Ellis Ross’s fan-favorite wash also uses the power of biotin and jojoba oil to gently cleanse hair without stripping. —Conçetta Ciarlo, Vogue, 22 May 2025

For example, high amounts of vitamin C can increase the risk of kidney stones in some people, and high intakes of biotin can impair thyroid test results. —Maggie Slepian, Glamour, 24 Mar. 2025

This blend of biotin, menthol, Panthenol is infused with 13% human stem cell culture to deeply nourish and revitalize. —Bianca Salonga, Forbes, 5 Mar. 2025

This antioxidant-rich cocktail of biotin, pro-vitamin B5, coconut oil, and extracts from saw palmetto berries and loquat fruit not only plumps strands with moisture for a thicker hair look but promotes shine and glossiness, creating a more reflective finish. —Jennifer Hussein, Allure, 26 Feb. 2025

Word History

Etymology

International Scientific Vocabulary, from Greek biotos life, sustenance; akin to Greek bios

First Known Use

1936, in the meaning defined above

Kids Definition

biotin

noun

bi·​o·​tin ˈbī-ə-tən 

: a growth vitamin of the vitamin B complex found especially in yeast, liver, and egg yolk

Medical Definition

biotin

noun

bi·​o·​tin ˈbī-ət-ən 

: a colorless crystalline growth vitamin C₁₀H₁₆N₂O₃S of the vitamin B complex found especially in yeast, liver, and egg yolk

called also vitamin H