Stretch your dollar even further with the best shampoo for color-treated hair, like our top pick, the Kérastase Chronologiste Shampoo for Dull and Brittle Hair, which leaves hair glossy and vivid ...

shedding, and thus, thin hair—and instead ensuring denser, fuller, and longer strands. There are a total of four products: a serum, a treatment mousse, a conditioner, and a (the) shampoo.