Nicole by OPI - Respect Yourself. Respect the World. Nicole by OPI believes once you feel respect inside yourself, you can share it with the rest of the world. We believe strongly in giving something back, and contribute to a variety of global charities that support the environment, health-related issues, hunger, the protection of women and children, and more. At Nicole by OPI, our favorite color is green. Nicole Nail Lacquers are free of DBP, Toluene, and Formaldehyde. Our glass packaging is recyclable. We do no animal testing; we believe in treating the environment gently and in taking steps to ensure its preservation. We hope that you feel good about yourself and your contributions to the world. We hope that you find our Nail Lacquers a beautiful way to show the world just how you feel. And we hope you'll join us in reaching out to others with respect that they - and you - deserve.