Designed to be deeply nourishing, kérastase resistance masque extentioniste helps to care for hair that feels brittle and damaged. Enriched with creatine r and maleic acid, this restorative hair mask has a unique formula that helps care for the signs of damage. Working to improve hair’s structure, the formula nourishes your strands to leave them feeling fortified, strengthened and healthier than before. Replenishing moisture, the formula works to leave hair looking smoother and shinier after just one use. Plus, this conditioning mask also helps to prevent further damage by sealing your hair's cuticle – giving you long lasting care and a boost of hydration. This deeply nourishing mask will lift your locks and help add some lustre back to damaged tresses. So, for hair that feels re energised and back to its best – add kérastase resistance masque extentioniste to your weekly hair care routine. For best use, apply after washing your hair. Towel dry to remove any excess water, then smooth on a hazelnut sized amount to your strands. Leave the formula for around 5 minutes before rinsing away thoroughly with warm water.