European Secrets Rock Hard Hardener & Basecoat

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Rock Hard produces stronger harder thicker nails and can be used alone, as a hardener, or as a basecoat.
  • Toluene and Formaldehyde free.
  • Strengthens weak, brittle nails
  • 5 times stronger than any other hardener.
  • Bonds together a cross-link of fiber proteins.
  • Creates a moisture shield that protects dry nails.