This is a professional-grade acidic colour treatment designed for use with the Kevin.Murphy Color.Me system. It works to enhance, refresh, and maintain hair colour vibrancy between full colour services. Utilizing an acidic formula, this treatment gently seals the cuticle, resulting in exceptional shine and improved hair health. It is suitable for colour-treated hair needing a boost of luminosity and deeper tonal resonance, offering long-lasting colour retention without harsh chemical exposure.