Kerastase Resistance Masque Extentioniste is a length-strengthening mask designed for slow-growing, damaged lengths. Formulated with Creatine to penetrate deeply and reinforce the hair fiber, it also combines Ceramide for surface recovery, delivering smoother, more resilient hair. Available in a generous 500ml (16.9 oz) format.

Infused with Maleic Acid to strengthen and seal the cuticle with a uniform coating from root to ends, this mask repairs hair bonds and supports elasticity. After use, hair feels softer, smoother, detangled, and more manageable.

• Deeply reinforces the hair fiber via Creatine to reduce breakage
• Ceramide-based surface recovery enhances smoothness and manageability
• Maleic Acid strengthens and seals the cuticle for a uniform root-to-tip coating
• Promotes hair bond repair to boost elasticity
• Leaves hair softer, detangled, and easier to manage

Add it to your routine today and start nurturing longer, stronger lengths.