Red hair colour it’s one of the fastest-fading colours you can dye your hair. Luckily it isn’t too hard to keep your red colour vibrant, but you do need to pay attention to how you’re treating your red hair.
I'm only responsible for what I say, not for what you understand. Although as an author I am responsible for making readers understand--a reader who doesn't understand is an unhappy reader. (And there is some value to leaving some questions unanswered.