New OPI Nail Envy Color + Strength. Strengthens natural nails with hydrolyzed wheat protein and calcium. Available in various classic OPI colors. / Apply easily and without streaks thanks to the ProWide brush. / Apply easily and without streaks thanks to the ProWide brush. Effect: Strengthening Special feature: Paraben-free Apply every 2 days remove after a week with OPI Acetone-Free Polish Remover. All Nail Envy products can be used as nail care or as an alternative to a base coat. The American Low Value Shipment Regulatory Modernization Act is active since March 2016 and increases the duty and tax free value of goods American citiziens could import from other countries by mail from $200 to $800 as well as no formal customs procedures are required. The American Low Value Shipment Regulatory Modernization Act is active since March 2016 and increases the duty and tax free value of goods American citiziens could import from other countries by mail from $200 to $800 as well as no formal customs procedures are required