The L'Oréal Professionnel Serie Expert Keratin Alpha Sleek Smooth Transformer Treatment (200ml) is an intensive, semi-permanent at-home smoothing treatment engineered to deliver long-lasting frizz and volume control. Positioned as a core step in the Keratin Alpha Sleek discipline routine, this weekly treatment provides deep fiber realignment that makes hair up to five times smoother while cutting daily blow-drying and styling time in half.
Unlike surface-level conditioning masks, this formula is powered by patented Keratin-Alpha Shaper technology combined with specialized amino acid chains. It acts directly at the innermost core of the hair fiber—where alpha-keratin dictates natural wave, curl, and texture—to temporarily reset internal structural bonds. This deep-level transformation keeps hair sleek, controlled, and resistant to humidity for up to two weeks while boosting instant shine by up to 77%.
Designed to be used once a week in place of a standard conditioner or mask, the rich cream is applied evenly from mid-lengths to ends on towel-dried, sectioned hair. After leaving it on for 10 to 15 minutes, it is thoroughly rinsed out before proceeding to blow-dry or style. With consistent use, it resets hair discipline and transforms rough, rebellious strands into touchably soft, fluid, and effortless hair.
