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OPI Black Onyx has become the gold standard for anyone searching for a true, opaque black nail polish that doesn’t turn grey or streaky after one coat. This cult-favorite shade delivers rich, saturated color with the same salon-quality formula OPI is known for, making it a reliable pick whether you’re going for a classic manicure or a bold seasonal look.

The pro-wide brush is designed to hug the natural curve of your nail, so you get even coverage without dragging, bubbling, or leaving visible brush strokes. Formulated to resist chipping, Black Onyx can last up to seven days when applied with OPI’s full 3-step system of base coat, color, and top coat. The fast-drying, high-shine finish means less time waiting around and more time showing off glossy, salon-fresh nails. It’s also part of a vegan formula, free from animal-derived ingredients, so it fits easily into a cruelty-conscious beauty routine.

Who Is This For?

Black Onyx is ideal for anyone who wants a dependable, true-black polish without the guesswork. It suits beauty minimalists who prefer clean, classic manicures, and it’s equally at home layered under nail art or paired with a matte top coat for a moodier finish. If you’ve been frustrated by streaky, sheer black polishes that need four coats to look right, this formula solves that problem in two. It’s also a smart pick for anyone building a base collection from OPI’s 200+ shade lineup, since Black Onyx works as a foundation color for French tips, ombrĂ© looks, and seasonal nail trends.

Bottom Line

OPI Black Onyx earns its reputation as one of the best black nail polishes on the market thanks to its rich pigment, chip-resistant wear, and salon-quality finish. The vegan formula and smooth application make it a low-effort way to get high-impact results at home. If you want a black polish that actually looks black—no streaks, no fading, no fuss—this is a smart addition to your nail polish collection.

Searching for the perfect deep black shade that delivers salon-worthy results at home? OPI Nail Lacquer in Black Onyx offers an opaque, vibrant crème finish that transforms your manicure instantly. This iconic color is designed to provide a rich, high-shine look that lasts, making it a staple in any nail polish collection.

One of the standout features of this formula is its durability. With proper application using the recommended three-step system, you can enjoy up to seven days of wear without chipping. The pro-wide brush hugs your nails for smooth, even coverage, ensuring no streaks or bubbles mar your finish. Plus, the fast-drying technology means you won’t have to wait long before getting back to your day.

Aside from its impressive performance, OPI is committed to cruelty-free beauty. This vegan formula contains no animal-derived ingredients, allowing you to look good while feeling good about your choices. Whether you prefer dreamy sheers or bold classics, this versatile shade fits perfectly into any style. Don’t miss out – check the current price and availability on Amazon today!

  • A super-rich, long lasting and chip resistant nail polish with up to 7 days of wear when using 3-step system
  • Pro-wide nail polish brush hugs nails for smooth, even coverage sans streaking or bubbling
  • Salon-quality formula that delivers high-shine and fast-drying results
  • 200+ trend-setting shades including dreamy sheers, versatile neutrals, playful brights, and iconic classics
  • A vegan formula with no animal derived ingredients or by-products
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