After receiving a colour service, it’s generally recommended to wait at least 24-48 hours before shampooing your hair. During this period, colour can set into hair completely.

After that period, your hair washing frequency should depend on several factors like hair type, oil and texture of your scalp. Mostly, twice a week is advised after hair colouring.

If your hair is oily or you are living in hot weather, you may need regular shampoo. Also, for dry or curly hair, don’t use shampoo often.

Your needs and preference should dictate your hair colouring frequency. You can also consult a stylist or professional to know how frequently you should shampoo your hair.