OPI are currently one of the biggest manufacturers of nail products and are known worldwide. They sell in over 103 countries and are constantly expanding. Also they research into trends and release collections and core shades to fit the trends. All of their products are equally high quality and fit the exact same standard. They sell over 55,000,00 bottles of lacquer and treatments each year which stands to prove the success and demand of their products. OPI produced high quality and highly pigmented shades they carry a huge range of shades and are constantly adding more collections and core shades. The best base for any OPI Nail colour. Creates a protective layer on your nails to prevent staining. Longwear formula helps your polish to last longer. Helps with preventing chipping. Apply one thin layer before applying your chosen polish.