The best defense against discoloration is provided by UV filters, which are also appropriate for solariums. Nails are strengthened and kept from breaking by keratin, a natural substance found in nails. Nature-inspired hues are available in the new Gel Effect Keratin collection. They transport us to romantic locales like Rome or Portofino. The coordinated nail polish colors were inspired by these amazing locations. Eleven milliliters 34866 is the product code.