100% Italian proposal to straight the hair. KERATIN PLUS is a formaldehyde free keratin smoothing treatment. It does not contain glutaraldehyde, parabens, cysteine derivatives ??and thioglycolate, contains natural and “semi-natural” ingredients, keratin and special silicones which, thanks to the heat action, make the hair smooth, strengthened,shiny and silky for a long time. KERATIN PLUS treatment is recommended for thick afro hair, virgin, coloured orbleached. You can use it both to straighten, to de-frizz and to repair.