These shampoos are designed to strip hair of impurities and excess product. Apply it to damp hair and lather well. Leave it on for a few minutes before rinsing. Repeat if necessary to see if it helps fade the blue dye.
Vitamin C can help break down the dye molecules. Crush 10-15 vitamin C tablets and mix them with a small amount of shampoo. Apply the mixture to your hair, leave it on for 30-60 minutes, and then rinse thoroughly.
Combine baking soda with your regular shampoo to create a potent dye-fading paste. Mix two tablespoons of baking soda with enough shampoo to cover your hair.
Dish soap is designed to cut through grease, so it can be useful for removing hair dye. Apply a small amount to wet hair, lather, and rinse.
Color removers are specifically designed to strip hair dye. Follow the instructions on the product carefully. These products can be quite effective but may require multiple applications to fully remove stubborn dye.
Applying a deep conditioning treatment can sometimes help fade hair dye. Look for treatments with natural oils like coconut or olive oil.
A colorist can offer solutions tailored to your hair type and dye situation, such as color correction treatments that effectively remove or neutralize the blue dye.
Sometimes, the best approach is to let time do the work. As you wash and care for your hair, the blue dye will gradually fade.