Going to a hair salon with dirty hair can be tempting, but it's not recommended. Dirty hair means the stylist will need help working with you and getting the desired look. Furthermore, this can also mean that more products must be used to ensure that it looks properly coiffed and well-groomed. Going in with clean hair makes it easier for your hairstylist to style your locks and gives you a better overall look. But it's okay if you go with dirty hair.