List Of After You Get Your Hair Dyed Long Can You Wash References. Web after you dye your hair, don’t wash it for at least two days because the hair is still sensitive and therefore will be more like to fade faster, says sergio pattirane, a. We all know the feeling.

If you want to take a hot shower, wear a shower cap to protect your color. Web while it is possible to dye your hair 12 hours after washing it, waiting a bit longer is usually better for optimal results. Web if you do choose to dye your hair right after washing it, keep in mind that your scalp will have much less of a protective barrier.