How To Improve Nail Health: A Dermatologist’s Guide

As a dermatologist, I see patients every day with brittle, peeling, or discolored nails. While a healthy diet and proper hygiene are essential, there are specific steps you can take to encourage stronger, more resilient nails. Below, I break down proven tips, debunk common myths, and share a free resource that can help you spot early signs of nutrient deficiency.

Understanding the Basics of Nail Anatomy

Nails are composed of a tough protein called keratin, produced by the nail matrix at the base of the nail. The nail plate that you see is the result of continuous growth and shedding. When the matrix is stressed—by trauma, nutritional gaps, or environmental exposure—nail health suffers.

Top 5 Evidence‑Based Ways to Strengthen Nails

  1. Maintain a Balanced Diet

    Protein, biotin, zinc, iron, and vitamin C all contribute to nail strength. Incorporate foods such as eggs, nuts, leafy greens, and citrus fruits into your meals.

  2. Hydration Matters

    Just as skin needs water, nails do too. Aim for at least 8 cups of water daily, and consider using a moisturizing hand cream that contains glycerin or shea butter.

  3. Protect Your Nails from Harsh Chemicals

    When washing dishes or cleaning, wear nitrile gloves to keep nails from drying out. Use a gentle, non‑acetone polish remover.

  4. Practice Proper Nail Hygiene

    Trim nails to a manageable length, file in one direction, and avoid biting or picking at the cuticle. This reduces trauma and infection risk.

  5. Consider a Biotin Supplement

    Biotin, a B‑vitamin, has been shown to improve nail thickness and reduce brittleness in some studies. Consult your healthcare provider before starting any new supplement.

Common Myths About Nail Care