What are some home remedies to lighten dyed hair?

Home remedies to lighten dyed hair include vitamin C or lemon juice. If the hair was dyed in the last 24 hours, washing it can also lighten it, as hair dye takes about 24 hours to completely set.

To lighten hair with vitamin C, crush at least 15 vitamin C tablets into powder, and mix it with shampoo to make a paste. Then apply the paste to the hair, and leave it in for a couple of hours. The citric acid lightens the hair.

Lemon juice also contains citric acid, so spraying it on hair lightens it. This works more effectively in the sun, as heat opens the hair cuticle.