Kerastase Resistance Therapist Hair Mask is an intensive restructuring hair mask specially crafted for very damaged, over‑processed, and fragile hair. Its rich, luxurious texture penetrates deep into the hair fiber to provide nourishment, restore strength, and improve overall elasticity. The mask proudly belongs to the Resistance range, a professional haircare collection designed to rebuild and reinforce the hair's inner structure. At the heart of this transformative mask lies Fibra‑KAP technology and Resurrection Plant Sap, two powerful components known for their ability to rebuild and fortify weakened hair from within. Fibra‑KAP works to reconstruct the core of the hair fiber, while Resurrection Plant Sap supports elasticity and resilience, helping strands regain flexibility without weighing them down. Together, these ingredients offer a deep nourishment boost that improves hair's overall health and touch. This mask specifically addresses the needs of hair that has been compromised by chemical treatments, heat styling, or environmental stressors. When used after shampooing, the creamy formula envelops each strand, helping to diminish the appearance of breakage, soften rough texture, and restore a smoother surface. Over time, hair looks more cohesive and feels noticeably stronger and more manageable. Kerastase Resistance Masque Therapiste can be used as part of a weekly care ritual or whenever hair requires intensive restoration and pampering. Its deeply nourishing characteristics provide both immediate comfort and long‑term strength benefits. Suitable for all hair lengths and types affected by damage, it offers a luxurious step in haircare that supports renewed vibrancy and resilience.