Does it affect my colour and how does it work?
Smartbond is added to your colour when mixed and applied as normal. This colour is processed for the usual time. When the colour is ready to come off, the hair is rinsed without shampoo and towel dried. Smartbond is applied as a pre-shampoo all over and left on for 10 minutes. The hair is then rinsed and shampoo and conditioner is applied as normal.