OPI, originally named Odontorium Products Inc., was a small dental supply company purchased by George Schaeffer in 1981. Shortly after taking over the company, Schaeffer was joined by Suzi Weiss-Fischmann, OPI's Executive Vice President and Artistic Director.

Top products from Opi
- OPI Nail Lacquer - Yellows & Oranges
- OPI Nail Lacquer - Germany Collection
- OPI Infinite Shine Fall Collection 2015
- OPI Expert Touch Lacquer Remover
- OPI Infinite Shine Gel Effects Lacquer - Blues & Greens