L’Oréal Professionnel Keratin Alpha Sleek Smooth Transformer is a professional smoothing treatment that makes the hair visibly softer, smoother, and more manageable. The formula penetrates deeply into the hair fiber and is suitable for all hair types. This smoothing treatment reduces frizz and gives the hair a silky‑soft finish with healthy shine, without weighing it down. When used as part of the full Keratin Alpha Sleek routine, the hair stays smooth and frizz‑free for up to 2 weeks.

  • Makes the hair smoother and softer
  • Visibly reduces frizz
  • Adds shine and improves manageability without weighing the hair down
  • Suitable for all hair types