topicBiotin Supplementation Hair Meta-Analysis
claimThe term “vitamin” comes from the Latin word “” (life) and the name “”—a characteristic functional group found in the first described vitamin (thiamine, vitamin B1).
evidence level3
citationLis Kinga (2025)
sourceBiotin Supplementation—The Cause of Hypersensitivity and Significant Interference in Allergy Diagnostics
topicBiotin Supplementation Hair Meta-Analysis
claim5 6 7 8 9 10 Although vitamin allergies are considered rather rare, the commonness and chronicity of their supplementation and exposure to high doses may be a potential risk factor for sensitization.
evidence level3
citationLis Kinga (2025)
sourceBiotin Supplementation—The Cause of Hypersensitivity and Significant Interference in Allergy Diagnostics
topicBiotin Supplementation Hair Meta-Analysis
claimIt seems likely, therefore, that biotin may pose a potential risk of sensitization.
evidence level3
citationLis Kinga (2025)
sourceBiotin Supplementation—The Cause of Hypersensitivity and Significant Interference in Allergy Diagnostics
topicBiotin Supplementation Hair Meta-Analysis
claimvita amine 1 Vitamins are a group of organic chemical compounds of various structures that are essential for the proper functioning of a living organism.
evidence level3
citationLis Kinga (2025)
sourceBiotin Supplementation—The Cause of Hypersensitivity and Significant Interference in Allergy Diagnostics
topicBiotin Supplementation Hair Meta-Analysis
claimHowever, deficiency may occur in specific at-risk groups, including individuals receiving long-term antibiotic therapy (which disrupts intestinal flora), chronic anticonvulsant therapy (which alters biotin metabolism), or total parenteral nutrition without adequate supplementation.
evidence level4
citationCervantes A (2025)
sourceBiotin Deficiency
topicBiotin Supplementation Hair Meta-Analysis
claimWhile biotin supplements are widely marketed for hair, skin, and nail health, limited clinical evidence supports their use in individuals without a documented deficiency.
evidence level4
citationCervantes A (2025)
sourceBiotin Deficiency
topicBiotin Supplementation Hair Meta-Analysis
claimMoreover, high-dose biotin supplementation has been shown to interfere with immunoassays, particularly those measuring thyroid hormones and cardiac biomarkers (eg, troponins), which may result in false-positive or false-negative results and lead to inappropriate diagnostic or therapeutic decisions.
evidence level4
citationCervantes A (2025)
sourceBiotin Deficiency
topicBiotin Supplementation Hair Meta-Analysis
claimBiotin (vitamin B7) is a water-soluble B-complex vitamin that plays a vital role in cellular metabolism.
evidence level4
citationCervantes A (2025)
sourceBiotin Deficiency