Kérastase Masque Vert Chroma Neutralisant 150mlDescription How to Use Ingredients Masque Vert Chroma Neutralisant 150ml is an intense color depositing hair masque for all types of dark brunette hair in need of neutralization. This dark emerald cream instantly hydrates and neutralizes red and copper undertones, for a darker cooler brunette color. Benefits: 89% more hydration* 92% less hair breakage* Instantly neutralizes red undertones for a cooler brunette shade Use once a week or as often as