Cosmetic colour is nice when it is shiny and intense.
In order to keep it bright, it needs to be protected by specific products, gentle against colouring molecules and strong against external aggressions.
WHAT IS COLOURED HAIR?
Hair that has been treated with a permanent cosmetic colour has gone through a process where the product has changed the pH of the hair to open the Cuticle layers and list out natural Melanin pigments then deposit the artificial pigment.
Semi-permanent cosmetic colour does not penetrate
the hair structure but will secure it's colour molecules under the Cuticle scales.
After the colouring process a pH balancing system is used to restore natural pH and lock in the new cosmetic pigments while creating natural protection.