Step 2 of the abril et nature Keratin TreatmentShampoo which contains keratin small enough to penetrate through the cuticle, to inside the cortex, and other parts of keratin large enough to remain deposited on the cuticle surface.Because of its durability and resistance to subsequent shampooing, it allows to be combined with other treatments from abril et nature, in the case of types of hair with more specific needs. Instant hair repair achieving immediate results. Silkier and shinier hair Stronger hair fiber and more resistant to breakage