Technically, you don’t want your hair to feel squeaky clean—that’s a clue that your shampoo is doing too good of a job stripping away beneficial natural oils. However, you do want your locks to feel thoroughly cleansed. The sulfate-free formula gets rid of any product build-up, dirt, and unwanted oils, while giving hair moisture and body. And, should you be concerned about thinning hair, it contains vitamins, amino acids, and keratin to strengthen fine hair by adding volume and fullness.