Est. 1996 • Medical Authority
Editorial Policy Advertise Physician Login
Lifestyle & Nutrition ✓ Medically Reviewed by Dr. William Rassman, MD

Micronutrients for Follicular Longevity: Biotin, Iron, Vitamin D3, and Zinc Dynamics

Biochemical investigation into how serum ferritin, 25-hydroxyvitamin D, and zinc deficiency correlate with diffuse alopecia.

Dr. William Rassman, MD • Diplomate, American Board of Hair Restoration Surgery
September 26, 2026 • 7 min read
SPONSORED MEDICAL ADVERTISEMENT: Certified Hair Restoration Clinics Worldwide
Micronutrients for Follicular Longevity: Biotin, Iron, Vitamin D3, and Zinc Dynamics

Key Nutrient Biomarkers in Hair Loss Diagnostics

Serum Ferritin levels below 50 ng/mL can shorten the anagen (growth) phase of hair follicles. Monitoring Vitamin D3 and zinc levels ensures optimal matrix cell division.

SPONSORED CLINICAL ADVERTISEMENT: Clinical Grade Micro-Needling & PRP Centrifuges
MEDICAL PEER-REVIEW DISCLOSURE: The information presented in this guide is intended strictly for educational purposes and does not replace formal medical diagnosis or clinical treatment advice.

Clinical Discussion & Reader Comments (1)

Michael R., RN Sep 26, 2026

Excellent clinical summary. The point regarding donor harvest threshold is crucial for patient safety.

Clinical Contents