Nails that break are brittle and fracture. Although the nail plate is made of keratin which is tough by nature, nails can become inflexible, brittle and break easily.
Apply 1 coat of Diamond Strength Hardener to clean, dry, bare nails; let dry. Apply your favorite Sally Hansen nail color. Diamond Strength Hardener’s shatterproof protective coating will prevent nails from breaking. The real micro-diamond formula bonds to the nail for added protection.