Masque Vert Chroma Neutralisant is an intense color-depositing hair masque with green direct dyes to instantly neutralize red undertones, for a cooler, darker brunette hair color. This dark emerald cream is so rich in pigments that it requires the use of gloves for a seamless in-shower application. Just as blondes need violet care to neutralize yellow undertones, brunettes need green pigments to get rid of red & copper brassiness.