Keratin Alpha Sleek Serum Concern_sensitivity Rebuild your hair's strength from

Rebuild your hair's strength from the inside out with Kérastase Resistance Ciment Anti-Usure

waterproof cloak around each individual hair strand

and full of body without stiffness or sticky residue

Unlike traditional toning products that can stain or dry out the hair

Matte finish with natural texture

Keratin Alpha Sleek Serum Concern_sensitivity Rebuild your hair's strength fromL'Oral Professionnel Serie Expert Alpha Sleek Serum is a lightweight leave in smoothing serum designed to control frizz, protect against humidity, and leave hair silky, smooth, and full of shine. Powered by Alpha Silane technology, this heat activated formula helps create long lasting smoothness while protecting hair during heat styling. Ideal for frizz prone, coarse, or unruly hair, it delivers a sleek, polished finish without weighing the hair down.