Kérastase Spécifique Rehydrating Masque - 200MLA lightweight gel masque infused with Amino acid and Ceramide, designed to intensely care for sensitized and dry lengths. This nourishing mask leaves hair feeling hydrated and moisturised, whilst helping hair to feel softer and look shinier with a lightweight feel. For best results, apply to towel dried hair then sit back and relax for 5 10 minutes.