3%

L'Oréal Professionnel iNOA 3 Dark Brown is an ammonia-free permanent hair color powered by patented ODS² (Oil Delivery System) technology containing 60% oil, delivering rich, deep, natural dark brown results with 100% grey coverage and up to 3 levels of lift . This Level 3 fundamental shade—also described as 3.0 Deep Natural Brown—provides maximum depth and opacity for clients seeking a true, authentic dark brown 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, non-drip texture that is faster and easier to apply, mix, and rinse compared to previous iNOA formulations, 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, and the packaging features dematerialized instructions to save up to 79 tons of paper annually .

This product is intended for professional use only. To use, mix 60g of iNOA 3 Dark Brown 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.