Hair oils and hair serums work as nourishing treatments to smooth frizzy hair. These anti-frizz hair treatments hydrate, nourish, smooth, control and boost shine. Hair serum can be a targeted scalp and hair treatment or can be used as a styling product that makes your hair smooth and adds shine. Hair oil is intended to nourish and improve your hair's health by delivering a high consistency of vitamins, minerals and fatty acids, also making hair shiny. The best hair oils and hair serums for frizzy hair coat the fiber and prevent frizz. Our collection of serums for the scalp and hair as well as daily, overnight and limited-edition hair oils are formulated to deliver results for all frizzy hair types. Explore our treatment hair care sets for all frizzy hair in need of smoothing and save 10% or take our hair quiz and find the perfect anti-frizz hair serums and hair oils for your type of frizzy hair.