What’s the story behind Keratin Complex®? It begins with keratin protein, the proven ingredient that helps make hair smooth, manageable and youthful-looking. From our signature Smoothing Therapy—the award-winning keratin hair treatment that started it all—to the launch of Color Therapy, a full collection of keratin-enhanced professional hair color, Keratin Complex is redefining what it means to be an industry leader. 

The innovative technology in our Smoothing Therapy treatments binds keratin to the hair. This process helps prevent humidity from penetrating the hair, thus locking out frizz. In addition, Keratin Complex Color Therapy incorporates this signature keratin technology into the hair-coloring process, which helps to make the hair stronger and smoother as it undergoes a color transformation.