Keratin Alpha Sleek Smooth Transformer – Professional treatment from L'Oréal Professionnel, formulated with Keratin Sleeker and amino acid chains.

Transform your hair for 2 weeks of straight, frizz-free strands. Suitable for all hair types. This professional treatment transforms hair for results with 5 times straighter strands and 2 times less frizz.

+77% immediate shine. Daily styling in half the time.

Hair fiber integrity preserved.

 70% of women stated they had never achieved this level of straightness before; their hair had never been so straight.

82% stated their hair had never been so quick to style. Smooth Transformer is free of artificial colors and alcohol.

Instrumental test after 4 applications of Keratin Alpha Sleek Shampoo + Smooth Transformer + Serum Instrumental tests using Keratin Alpha Sleek Smooth Transformer.