Nail Expert - Black Diamond Hardener

Strengthen fragile nails instantly with Nail Expert - Black Diamond Hardener. Enriched with micro black diamond powder, this dual-patented formula forms a hard, glossy shield that reinforces thin, brittle nails. It dries quickly, helps prevent splitting and peeling, and includes a UV filter to protect against sun damage.

Key Features

• Forms a hard, glossy shield.
  
• Helps prevent splitting and peeling.
  
• Strengthens and protects brittle nails.