Hair Health Stack

Key points

• Hair follicles are among the most metabolically active cells in the body — they respond quickly to nutritional deficiencies
• The most common causes of hair loss: iron deficiency, zinc deficiency, low protein intake, vitamin D deficiency, and DHT sensitivity
• Biotin deficiency causes hair loss — but most people are not deficient; biotin supplements help mainly if deficient
• Collagen provides the amino acids (glycine, proline) for keratin synthesis — the structural protein of hair
• Scalp health matters: dandruff and seborrheic dermatitis cause inflammation that impairs follicle function — treat the scalp first