Determine how much remover you need
Consider the length and thickness of your hair. You need enough homemade dye remover to saturate every strand.
Crush the vitamins
Crush several vitamin C tablets with the back of a spoon until there are no large chunks. Sweep the powder into a bowl.
Squirt shampoo over the vitamin powder, and stir the mixture until it forms a thick, slightly gritty paste. Add more pulverized vitamin C if the paste seems runny.
Apply the paste
Saturate your hair with the paste. Rub it deeper by using your fingers. Massage the entire length of your hair until the shampoo foams. Cover your hair with a plastic shower cap and wait 1 hour.
Rinse and condition your hair
Remove the shower cap and rinse your hair with warm water until the water runs clear. Coat your hair with a thick conditioner, and wait 5 minutes to rinse your hair again.