Professional permanent hair dye without ammonia and without odor. Contributes to scalp comfort and helps respect the condition of the hair, promoting its natural level of lipids and essential amino acids. Helps to cover 100% of white hair with a uniform color, from root to tip, that can last up to 6 weeks. Facilitates nourished, moisturized and soft hair. It has an easy-to-apply blend and an oil diffusion system that helps stabilize the aqueous and oily phases for quick and easy application.