Just for men shampoo in hair colour light medium brown provides perfect results in just 5 minutes which last up until the grey hairs grow out it is quickly and easily applied and after it is complete you can shampoo as often as you like and treat your hair the way you always have does not contain ammonia as an added bonus just for men shampoo in hair colours does not contain any ammonia it is gentle on your hair and keeps it looking impressive at all times this pack contains colour base