O.P.I Vernis Nature Strong For What It's Earth OPI nail polish embodies the perfect combination of commitment to the planet and cosmetic excellence. Its vegan formulation and cruelty-free certification make it an ethical choice without compromising on quality. With its 15 ml capacity, this innovative nail polish offers you a product that is both high-performance and environmentally-friendly, for nails that are sublimated in complete serenity.