Backup Plan
It is not recommended to shampoo with dish soap in the vast majority of situations. This is because shampooing with dish soap can cause irritation to the scalp. Dish soap may be all that is required, depending on the particulars of your circumstance, in order to keep your hair clean and smelling nice. However, this will depend on the circumstances of your particular case.
You can substitute dish soap for shampoo if you’re dealing with particularly unruly locks. This is especially useful for children, because children always seem to find a way to get the grossest things caught in their hair. Dish soap is effective at removing even the most stubborn substances, such as Vaseline and Silly Putty. In addition, if your hair is extremely oily, washing it with dish soap once every few weeks can help revitalize your scalp and remove all of the excess oil. This is a good idea even if your hair is not oily.