biotin

noun bi·o·tin \ ˈbī-ə-tən \

Definition of biotin

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

See biotin defined for kids

Recent Examples of biotin from the Web

These commonly contain antioxidants such as vitamins A, C and E, or coenzyme Q10, as well as biotin, a B-complex vitamin.

— consumer reports, Washington Post, "Little evidence for supplements to treat thinning hair, dry skin and brittle nails," 7 Aug. 2017
Ouai’s Dry Hair pack promotes shine, hydration and prevents breakage with a mix of vitamin E, amino acids and biotin.

— jenna rennert, Vogue, "5 New Beauty Supplements That Will Help You Look and Feel Better," 4 Aug. 2017
Available for dry, thinning and oily hair, the beauty-boosting supplements are packed with nourishing ingredients like biotin, omega 3 and silica.

— courtney ortega, star-telegram.com, "Top of the beauty crop," 5 July 2017
Health benefits include vitamin B12, calcium, magnesium, vitamin K2, biotin, folate, enzymes and probiotics.

— atlanta life, ajc, "Seven-Day Menu Planner," 7 Apr. 2017
Supplements like biotin, found at basically any local pharmacy, encourage healthy hair and nail growth, while some haircare experts recommend taking Viviscal as well to speed things up.

— the editors, Marie Claire, "7 Ways to Make Your Hair Grow Faster," 27 Feb. 2017
Some derms also suggest taking a multivitamin with biotin and a fish-oil pill to make your hair stronger.

— jessica prince erlich, Harper's BAZAAR, "13 Secrets to Long, Thick, Shiny Hair," 7 Nov. 2016

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'biotin.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.