Kérastase Nutritive Magic Night Serum 6ml x 6 KERASTASE Leave-in Treatment (Out-bath Treatment) Price is not negotiable. I try to check thoroughly before listing, but please forgive any oversights as I am a private seller. There are no smokers in the household. Although unused, please consider this a pre-owned item stored at home. Please note that I do not ship on weekends. Please understand that recycled materials may be used for packaging.