L'Oréal INOA (Innovative No Ammonia) is a professional, ammonia-free permanent hair color system launched by L'Oréal Professionnel in 2010. It features a patented Oil Delivery System (ODS2) technology that uses oils to deliver color pigments deep into the hair cortex, providing 100% grey coverage, long-lasting color, and a glossy, natural finish without the harsh odor or scalp discomfort associated with ammonia-based dyes. INOA offers up to three levels of lift and is suitable for all hair types...
, including double-process services. The formula is certified vegan, fragrance-free, and designed exclusively for professional use. INOA is supported by digital innovation such as the My Hair [iD] app, which uses AI for personalized color diagnosis and virtual try-ons, enhancing the consumer and pro
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