L'Oréal Professionnel Keratin Alpha Sleek Professional Mirror-Smooth Serum 50 ml is formulated with 5 % Keratin Sealer, an active ingredient designed to help seal the hair's keratin.
It helps provide a long-lasting smoothing effect while helping to control frizz and volume for up to 10 washes.
It also forms a protective barrier against humidity, even in conditions up to 80 % air humidity, helping to maintain hair discipline and softness.
With heat protection up to 230 °C, it protects hair when using heating devices such as blow-dryers, flat irons, or curling wands.
Integrated into a hair routine, it provides up to 2 weeks of anti-frizz effect and softness, while making daily styling up to 3 times faster.
