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For adults (18+) only. For informational purposes only — not medical advice. Consult your healthcare provider before starting any supplement.

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Side-by-side comparison of 1 supplements

Biotin

Evidence

Evidence Score8.5/10

Studies: 40+

Meta-analyses: 9

Dosage & Timing

Dosage:

2500-5000mcg (2.5-5mg) for hair/nails

Best Time:

Any time of day

Can take on empty stomach

Form:

Biotin capsules or tablets

What You'll Notice

💅 Stronger Nails60%

3-6 months

💇 Hair Quality40%

3-6 months

Safety

moderate safety rating

Contraindications:

Known allergy or hypersensitivity to Biotin or related compounds
May interfere with lab test results (thyroid panels, troponin, hormone assays) — inform healthcare providers before blood tests

Drug Interactions:

Lab tests (thyroid, troponin, hormones)
Anticonvulsants
avidin

Side Effects:

Acne (rare)

Works Well With

Collagencomplementary

Zinccomplementary

Categories

longevity

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