Evo® BASE by Bio Sculpture has been designed to provide the best combination of performance and safety. It contains no organic solvents, formaldehyde, DBP or Camphor. Its long chain length polyurethane backbone was selected specifically to provide the flexibility and toughness necessary for product performance as well as to provide enhanced oxygen and water vapour permeation after curing. Maintaining the healthy exchange of water vapour and oxygen (O2) to and from the nail bed is essential for optimal nail health. Evo® BASE is a medical grade formulation and infused with Vitamins A and E.