Best hair shampoo?

The best hair shampoo is the one that is right for a person's hair type and budget. If they have curly or heavily damaged hair, they would typically use a moisturizing shampoo. Or, if they have fine, limp hair, they would definitely want to use a volumizing shampoo. This applies most of all to people who have colored their hair. They should always use shampoos made for dyed hair.