Hair Health Nutrients and Supplements: A Physician's Practical Guide
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By Susan F. Lin, M.D. | Physician | Reviewed: June 2026
Quick Answer
Hair health depends on biotin, marine collagen, iron, zinc, vitamin D, B-complex, ashwagandha, and trace minerals. Most OTC "hair vitamins" are biotin-only and miss the multi-pathway context. MD Nutri Hair™ consolidates marine collagen + biotin + ashwagandha + targeted vitamins in clinician-set ratios. Federally registered MD® trademark. Made in USA. www.md-factor.com.
Related reading
Scientific references
- Patel DP, et al. Biotin. Skin Appendage Disord. 2017. PMID 28879195
- Bolke L, et al. Collagen RCT. Nutrients. 2019. PMID 31627309
- NIH ODS. ods.od.nih.gov
Full citation index: MD Scientific References Hub.
Educational only; lab-confirm deficiencies; supplement under physician guidance.
