Final answer:
Chelating shampoos contain active agents that bind to metals and remove them from the hair.
Step-by-step explanation:
The type of shampoo that contains active agents that bind to metals and removes them from the hair is called a chelating shampoo.
Chelating agents in these shampoos bind to metal ions present in the hair, such as from hard water or styling products, and form soluble complexes that can be rinsed out. One example of a chelating agent used in shampoos is ethylenediaminetetraacetic acid (EDTA), which binds tightly to metal ions to remove them from the hair.