: 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
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Its peptides, biotin, glycerin, and ginseng root extract offer a nourishing defense against breakage and brittleness, reviving the brows of numerous staffers at Allure HQ.
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Sophia Panych, Allure, 16 Sep. 2025
These have a tasty strawberry flavor and are packed with biotin, folic acid, and a slew of vitamins and minerals to support the body’s production of collagen and a healthy scalp.
—Kiana Murden, Vogue, 12 Sep. 2025
Some supplements combine biotin with other vitamins or proteins like collagen or keratin (to support hair, nails, and skin).
—Julie Scott, Verywell Health, 2 Sep. 2025
The formula features biodesigned peptides, keratin, and biotin to reinforce follicles and improve resilience, along with hydrating proteins and botanicals that support scalp health.
—Malia Griggs, Glamour, 25 Aug. 2025
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Sophia Panych, Allure, 16 Sep. 2025
These have a tasty strawberry flavor and are packed with biotin, folic acid, and a slew of vitamins and minerals to support the body’s production of collagen and a healthy scalp.
—Kiana Murden, Vogue, 12 Sep. 2025
Some supplements combine biotin with other vitamins or proteins like collagen or keratin (to support hair, nails, and skin).
—Julie Scott, Verywell Health, 2 Sep. 2025
The formula features biodesigned peptides, keratin, and biotin to reinforce follicles and improve resilience, along with hydrating proteins and botanicals that support scalp health.
—Malia Griggs, Glamour, 25 Aug. 2025
See All Example Sentences for biotin
Cite this Entry
“Biotin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/biotin. Accessed 20 Sep. 2025.
Copy CitationKids 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
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