Frequently Asked QuestionsWhat causes frizzy hair? According to Shelly Aguirre, a hairstylist based in Chicago, frizzy hair is often dry, so moisturization is essential. The best shampoos for frizzy hair target dryness and contain "naturally hydrating ingredients that will smooth the hair shaft but not overly weigh the hair down," New York City-based hairstylist and colorist Paul Labrecque tells Allure. Many are created in order to address a concern (dandruff, breakage, brittleness) or to work most effectively for a specific hair type (4C curls, wavy hair, gray hair). For our review of the best shampoos for frizzy hair, we enlisted the help of multiple editors, writers, contributors, and hair stylists—who all deal with frizz and would like sleeker results.