Kerastase Nutritive Masque Magistral Irisome (6.8 oz) is an intensely nourishing hair mask designed for severely dry and sensitized hair. Enriched with the Irisome Complex and Benjoin Resin, it deeply hydrates, restores softness, and improves hair manageability while protecting against future dryness. This luxurious, salon-quality treatment penetrates the hair fiber, leaving it silky, smooth, and radiant without weighing it down. Ideal for thick, dry, or brittle hair, it provides long-lasting moisture and nourishment for a healthy, revitalized look.