L'Oréal Professionnel Dia Light 10.21 (50 ml) is the perfect solution for those who desire a professional, luminous, and long-lasting result without sacrificing hair health. Thanks to the ammonia-free formula, this permanent color respects the struttura of the fiber, ensuring a silky and shiny finish. The shade 10.21, a very light ash blonde, neutralizes warm highlights, enhancing the natural brightness of the hair. Key features: - Low-pH technology that gently opens the cuticle for excellent pigment penetration - Modifiable tone, ideal for customizing cool shades and achieving the perfect blonde - Fluid and homogeneous texture, easy to apply even on longer lengths Customer benefits: - Maximum brightness and color definition from the first use - Protective effect that strengthens the hair shaft, leaving the hair soft to the touch - Low odor emission, for a comfortable salon experience L'Oréal Professionnel Dia Light 10.21 is the result of years of research, designed for those who demand the best in terms of color performance and hair care.