L'Oréal Inoa 6% 20 vol is a professional-grade oxidant specifically designed for use with L'Oréal Inoa ammonia-free hair color. This 1000ml bottle provides the ideal developer concentration for achieving vibrant, long-lasting color results, covering grey hair, and gently lifting natural hair color. Its unique formula ensures optimal performance and respect for the hair fiber, leaving hair looking healthy and shiny.