Primer shampoo with alkaline ph (about 9). applied before the color removing treatment or coloring, it opens the scales of the hair and helps remove excesses of color already present.
how to use

apply evenly on wet hair, rub against the scales and, if necessary, leave on 5/10 minutes. rinse and proceed directly with the color removing treatment, without applying conditioner or mask.

– Nourishing hair treatment mask by Nouvelle.