What is keratin? Keratin is a fibrous protein found naturally in the hair. It acts as a protective shield against humidity, the primary cause of frizz. Over time, the hair loses keratin from exposure to the sun, the environment, styling and chemical services. Porous spots develop in this damaged hair, much like potholes in a road.
The pre-treatment step removes surface buildup and prepares the cuticle, lifting its overlapping layers to allow the treatment to penetrate the hair.
During application, the keratin treatment penetrates into the hair’s cuticle. Hydrolyzed keratin strengthens keratin bonds from within, helps repair damage, and smoothes the hair shaft.
Keratin and additional conditioning agents help nourish and strengthen the hair, while restoring smoothness and shine.
The hair shape is further adjusted with the assistance of heat—first with a blow-dryer and finally with a flat iron. This final step helps seal in the treatment to create a humidity-resistant finish.
Time-Saving Tresses: If you usually style your hair straight, a keratin hair-straightening treatment could shorten your blow-dry time by 40% to 60%, says hair stylist Henri Borday of New York’s Mizu salon and corporate educator for Global Keratin.