Do you feel like your hair hits a "growing barrier" and stops at a certain length, forcing you to trim split and broken ends every few months? Has thermal styling, bleaching, or environmental stress left your lengths fragile, porous, and brittle? Kérastase Paris Resistance Masque Extentioniste (200ml) offers an intensive length-strengthening clinical hair mask. Powered by the cutting-edge Creatine R Complex and Maleic Acid, this luxurious conditioning treatment penetrates deep into damaged hair cuticles to seal split ends, repair broken structural bonds, and fortify fragile strands from root to tip.