Biotin is an essential vitamin that has been grouped with the B-complex vitamins since it was discovered in yeast alongside other B vitamins. Although it is technically known as vitamin B7, this designation is not too common as it is usually simply referred to as biotin. It was initially found to be a component of nails, skin, and hair to a relatively high degree.
What is biotin?
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•Last Updated: May 16, 2025
Biotin, also known as vitamin B7, is an essential B-complex vitamin that was discovered in yeast and is primarily associated with the health of nails, skin, and hair. It is commonly referred to simply as biotin rather than by its technical designation.