Use a clarifying shampoo and wash hair several times
Apply a vitamin C and shampoo paste to damp hair, leave on briefly, then rinse
Use a color-removing product designed for hair dye
Try a baking soda and anti-dandruff shampoo mixture on damp hair
Apply warm olive oil or coconut oil, leave on, then shampoo out
Use a gentle bleach bath only if necessary and follow product instructions carefully
Deep condition after each treatment
Repeat treatments gradually instead of overprocessing hair
Consult a professional stylist for stubborn or damaged hair