Toner is an important step in the colouring service as it gives you the final colour. Toners work by accentuating certain tones in the hair as well as banishing unwanted tones. Hair toners can either be demi or semi-permanent. They only contain a small amount of ammonia. Therefore, aren't permanent. It means that a toner will only last up to 6 weeks if following the correct aftercare at home. However, once the toner washes out, you can maintain your hair at home with toning shampoos.
