Achieve the best manicures with the brand that has won awards for its fool proof nail treatments and laquers. Trend setting colours have fun and original names. The most-asked-for brand in the industry! With a superior range of shades and the hottest special effects and textures, OPI is the go-to brand for nail fashion. From elegant classics to eye-popping brights, OPI has your colour! Formaldehyde-free. The most-asked-for brand in the industry! With a superior range of shades and the hottest special effects and textures, OPI is the go-to brand for nail fashion.