OPI Black Onyx is a deep, saturated black with a smooth creme finish. Rich and opaque in two coats, this iconic shade carries a glossy shine that feels polished and timeless. Whether worn alone for a refined, editorial look or used as a foundation for nail art, Black Onyx delivers flawless color with professional-grade intensity.
The ProWide brush glides on evenly, minimizing streaks and ensuring buildable coverage. Chip-resistant and long-lasting, this 0.5 oz lacquer is a staple for bold, dramatic manicures.
How to Apply
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Start with clean, shaped nails and apply a base coat.
Apply two thin coats of Black Onyx, letting each layer dry.
Seal with a top coat for extended wear and shine.


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