Blond Studio Bonder Inside by L'Oréal Professionnel is the next-generation bleaching powder that combines intense lightening—up to 9 tones—with an internal hair fiber protection system, already included in the formula. Thanks to Bonder Inside technology, inspired by salon bond-building treatments, this powder helps strengthen bonds within the hair during the bleaching process, significantly reducing the risk of breakage. The result? Stronger, more elastic, and visibly healthier hair, even after intense lightening. Its compact texture is designed for precise and controlled application: it doesn't fly away or swell, and guarantees even application of the product, essential for achieving pure, brilliant, and even blondes. It's perfect for both classic foil techniques and freehand applications. Designed for professionals who want to simplify the technical process without sacrificing quality, Bonder Inside eliminates the need for a separate bonder: fewer steps, less margin for error, and more efficiency in the salon. It can be mixed with L'Oréal Professionnel 6, 9 or 12 volume oxidants, depending on the desired lightening intensity.
