INOA by L'Oréal Professionnel represents a revolutionary approach to permanent professional hair coloring, delivered without ammonia. This innovative formula utilizes an oil-based technology to maximize the performance of the color system, ensuring exceptional color results, ultimate respect for the fiber, and supreme comfort for the scalp during the application process. This permanent hair color provides comprehensive grey coverage and delivers rich, vibrant shades with reflective, multi-tonal results. The absence of ammonia contributes to a less intense odor and a gentler experience, making it suitable for clients seeking high-performance color in comfort.