Treat your hair to the Kérastase Nutritive Masque Magistral, a restorative hair mask that works to nourish and soften severely dried-out, thick hair. Utilising 4600 PPM Irisome Complex and Benjoin Resin technologies, the intensely nourishing formula gets to work on wanting hair; its balancing and protective properties help to smooth and soften every strand, improve manageability and detangling, and inspire mirror-like shine.