Biotin
Vitamin B7
A water-soluble B vitamin essential for carbohydrate and fat metabolism, most widely used for hair, skin, and nail health. Deficiency is uncommon but contributes to hair thinning.
Known Health Benefits
Active Compounds
D-biotin
Dosage Guidance
2.5–10 mg daily for hair and nail applications
Always consult a healthcare provider for personalized dosing.
Potential Side Effects
Generally very safe; IMPORTANT: may interfere with thyroid and cardiac lab tests (troponin) at high doses — inform your doctor
Known Drug Interactions
Anticonvulsants may reduce biotin levels; interferes with thyroid and troponin lab assays
Evidence Classification
Supported by cohort studies, case-control studies, or multiple observational studies with consistent findings.
Related Entries
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This entry is for educational purposes only. It is not medical advice. Always consult a qualified healthcare provider before starting, stopping, or changing any supplement regimen, especially if you take medications or have health conditions.