I constantly dye my hair blue black but it will only remain blue black for like the first week or so then it will fade into this dark brown reddish color in the sun. I love the way BLUE BLACK hair looks but I cannot manage to keep it looking this way. Ugh this is frustrating can anyone help me?? :confused:

Sunlight and frequent use of harsh shampoos can fade hair color. You can keep your new color from fading by using shampoos and conditioners for color-treated hair.