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The nearest shades to Black Onyx across other brands in the Index, ranked by color distance. Not sponsored, not guessed: measured from each polish's recorded color.
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NL T02
Black Onyx by OPI is a deep, muted black with a cream finish.
Color
A long-lasting nail polish in a true black crème finish that’s a real gem. NOTE: Gel finish requires a UV or LED lamp to cure.
OPI's Black Onyx reads as a deep, muted black with a cream finish. OPI labels it NL T02. The Index records its color, and the swatch on this page is drawn straight from it.
You will find it made as regular, gel, and dip. OPI released it as part of the GelColor · Powder Perfection collection.
If you are hunting a dupe, start with London Baby by Ciate London, the nearest shade in the Index. More close calls are ranked below.
Regular
INGREDIENTS: Ethyl Acetate, Butyl Acetate, Nitrocellulose, Adipic Acid/Neopentyl Glycol/Trimellitic Anhydride Copolymer, Tribenzoin, Isopropyl Alcohol, Stearalkonium Bentonite, Styrene/Acrylates Copolymer, Stearalkonium Hectorite, Sucrose Acetate Isobutyrate, Benzophenone-1, Citric Acid, Diacetone Alcohol, Dimethicone, Methicone, Iron Oxides (CI 77499).
Gel
Ingredients (Black Onyx): Polyurethane-57, Benzyl Methacrylate, PEG-9 Dimethacrylate, Ethyl Trimethylbenzoyl Phenylphosphinate, Trimethylolpropane Trimethacrylate, Isobornyl Methacrylate, Silica, Bis-Trimethylbenzoyl Phenylphosphine Oxide, BHT, p-Hydroxyanisole, Hydroquinone, [May Contain/Peut Contenir/+/-: Iron Oxides (CI 77499)].
Dip
INGREDIENTS: Polyethylmethyacrylate, CI 77499 (Iron Oxides), Polymethyl Methacrylate, Benzoyl Peroxide, Silica.
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