L'Oréal Professionnel Nutrifier Nourishing Masque is a silicone-free professional formula designed to leave dry hair feeling intensely Nourished, softer, more supple. This professional hair mask is also great for detangling. Deeply hydrates; Helps maintain a barrier to prevent dryness.; silicone-free professional formula; Glycerol Masque - great for undernourished hair.