Symbiose Masque Revitalisant Essentiel by Kérastase is a sulfate-free intensive revitalizing mask for damaged hair prone to dandruff. It is enriched with: Salicylic acid for scalp care Squalene for intense hair nourishment Its formula is specially designed for people who struggle with dandruff and damaged hair. It soothes discomfort and helps eliminate residue trapped in the lengths. The powerful detangling action restores moisture to the hair fiber and provides intense nourishment. Masque Revitalisant Essentiel has a rich, creamy buttery texture combined with a luxurious fragrance. Over 97% hydration and nourishment Hair is 99% stronger and with less breakage 42% reduction in frizz after 48 hours X2 more shine