Have the best hair day with this Kerastase Leave-In Treatment~! Log into your BzzAgent account after you click the button below. Apply for the sample and answer just a few questions.

Kerastase Résistance anti-breakage hair care rebuilds the internal structure of weakened hair to strengthen and reinforce the fiber, creating strong hair from roots to tips. Its innovative combination of ingredients helps the fiber to be reconstructed day by day, for the hair to be strong to the touch and more resistant.