L'Oréal Professionnel Paris KERATIN ALPHA SLEEK serum

L'Oréal Professionnel's Alpha Sleek Keratin Mirror Serum, formulated with 5% Keratin Sealer, seals the hair's keratin structure for lasting smoothness and frizz and volume control for up to 10 washes*. It controls frizz even in humidity up to 80%* and provides heat protection up to 230°C*.

Benefits:

Cut styling time in half**. Transform hair: smoothness and frizz control for up to 2 weeks when using the complete routine**. Heat activated. Blow dry. Use a flat iron for longer-lasting results.

This serum contains no artificial colors or alcohol.

Keratin is an ingredient of animal origin, also present in human hair. This product does not contain keratin.

*Instrumental tests

**Instrumental test with a routine of 4 applications of Shampoo + Smooth Transformer + Mirror Sleek Serum