L'oreal elvive triple resist reinforcing shampoo with arginine is an essential amino acid and a vital constituent of the hair fibre'. '.strtoupper('e')nriched in arginine protein the new formula provides a triple reinforcing action you put your hair through daily torture and sometimes it can lack essential nourishment,'. '.strtoupper('w')eakened, your hair has a tendency to break and fall out'. '.strtoupper('a')rginine is an essential amino acid and a vital constituent of the hair fibre'. '.strtoupper('e')nriched in arginine protein the new formula provides a triple reinforcing action reinforces hair fibre nourishes from root to tip hair feels stronger proven results your hair feels stronger from root to tip, healthy looking, shiny.