Keratin Alpha Sleek Smooth Transformer is a Professional Smoothing Treatment by L'Oréal Professionnel, formulated with Keratin-Alpha shapers and Amino-acid chains. This professional smoothing treatment reprograms hair for up to 5x more smoothness with up to 2x less frizz¹, controlling unwanted volume for daily styling in half the time². When used with the full routine, it will reprogram hair for up to 2 weeks of frizz control