The Blacklight Neu:Vio Blonde Science Violet Neutralizing Spray is designed to neutralize unwanted yellow tones while enhancing the brightness of blonde, gray or lightened hair. Powered by NEU technology with squalane and high-purity chromophores, it helps balance hair tones while delivering hydration and softness. Its lightweight mist refreshes color and enhances shine without weighing hair down, leaving hair radiant and beautifully toned. Neutralizes unwanted yellow tones Enhances brightness of blonde and lightened hair Provides hydration and softness without weight HOW TO USE Spray evenly onto clean damp or dry hair, focusing on areas where yellow tones appear more visible. Do not rinse. Style as desired.