The Best After How Long Can I Dye My Hair Again Ideas. First of all, how long you need to wait will depend on the color you’ve used. Web as a general rule of thumb, he recommends dying your hair only every four to six weeks.

Web wash out thoroughly and let air dry. Web typically, you will need to wait for at least two weeks before deciding to color your hair again. It changes the original hair color partly or wholly to an artificial color that looks good on the.