Kerastase Resistance Extentioniste Shampoo (34oz) & Masque (16.9oz) Duo | Strengthen, Repair & Boost Hair Growth .

Achieve stronger, healthier, and longer hair with the Kérastase Resistance Bain Extentioniste & Masque Duo Set. This powerful combination is designed to fortify weakened strands, reduce breakage, and promote optimal hair growth. The Bain Extentioniste Shampoo (34oz) gently cleanses while infusing hair with strengthening ingredients like Creatine R and Taurine, helping to reinforce the hair structure from root to tip. Paired with the Masque Extentioniste (16.9oz), this deep-conditioning treatment restores hydration, seals split ends, and prevents future damage, leaving hair soft, smooth, and resilient.

Ideal for those with damaged, brittle, or slow-growing hair, this duo works synergistically to improve hair health and maximize length retention. The shampoo effectively removes buildup and impurities without stripping moisture, while the masque deeply nourishes, detangles, and strengthens the hair fiber. With continued use, your hair becomes visibly healthier, shinier, and more resistant to breakage, allowing you to grow longer, stronger locks with confidence.

This salon-quality duo is perfect for all hair types and textures, providing professional-grade care in the comfort of your home. Whether you frequently heat style, color-treat, or struggle with weak, breakage-prone hair, the Kérastase Resistance Extentioniste system helps you achieve your hair goals. Elevate your routine with this luxurious strengthening set and experience the transformation of stronger, smoother, and more resilient strands.