permanent color without ammonia with keratin. It is the result of a long and intense research effort by the laboratories of faipa cosmetics to achieve una technical innovation in the coloring range that takes into account the need to safeguard as much as possible the struttura of the hair and, at the same tempo, to achieve una coloration that meets the expectations of the most demanding hairdressers. It is una technical innovation as it is gentle on the hair since it lacks the aggressiveness of ammonia. The struttura of the hair is protected and strengthened by the presence of keratin, which gives greater compactness and tensile strength; this translates, to the touch, into greater softness and smoothness.