In the United States, it is the Federal Communications Commission, or FCC. And its jurisdiction doesn't stop at radio, but also extends to television, the Internet and really any form of communication extended over air or wire.
Wash your hair with a gentle moisturizing shampoo made for chemically treated hair on day three. These shampoos will have natural, soothing ingredients for those stressed tresses after a perm. Use gentle massaging motions on the hair and rinse thoroughly. Only use warm water when washing your perm, never hot.
Quick Answer. Freshly dyed hair can be washed after 24 hours. It takes this long for the new color to be fully absorbed into the hair shafts.