Keratin color lasts the same time than a normal color with ammonia, i.e. 3 / 4 weeks. It is very important to use after application a post color acid pH shampoo and a hair cream pH balancer to keep the color longer and with more shine.
I received the photos of the models, let us know the color base of the model and the keratincolor shade applied indicating the peroxide type you used.
Keratincolor lasts the same time than a normal color with ammonia, i.e. 3 / 4 weeks. It is very important to use after application a post color acid pH shampoo and a hair cream pH balancer to keep the color longer and with more shine.
I received the photos of the models, let us know the color base of the model and the keratincolor shade applied indicating the peroxide type