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L'Oréal Professionnel iNOA 1 Darkest Natural Black is an ammonia-free permanent hair color powered by patented ODS² (Oil Delivery System) technology containing 60% oil, delivering intense, deep, true black results with 100% grey coverage and up to 3 levels of lift . This Level 1 fundamental shade—also described as 1/1N Black—provides maximum depth and opacity for clients seeking a true, jet-black result with no unwanted warm or cool reflects .

The revolutionary formula replaces traditional ammonia with an oil-based delivery system, providing a pleasant, odorless coloring experience while offering 48% more shine, 43% less hair porosity, and +20% scalp hydration . The vegan formula features a fluid, unctuous, non-drip texture that is faster and easier to apply, mix, and rinse, with results lasting up to 6 weeks .

Mix at a 1:1 ratio (1 tube color to 1 part developer) with iNOA Oil Developer 10-volume (3%), 20-volume (6%), or 30-volume (9%), depending on desired lift . For white hair coverage up to 70%, use the target shade alone; for 70-100% white hair, use deep or extra coverage natural shades for deeper, more opaque coverage . Development time is 35 minutes at room temperature .

The tube is made of 95% recycled aluminum for reduced environmental impact.

This product is intended for professional use only . To use, mix 60g of iNOA 1 Darkest Natural Black with 60g of iNOA Oil Developer, apply to dry, unwashed hair using sectioning techniques, process for 35 minutes, then emulsify gently, rinse thoroughly, and finish with iNOA Post-Color Shampoo or Metal Detox Shampoo . Always perform a patch test 48 hours before any coloring service.