Details Easily activate and define curls while hydrating hair. Moroccanoil Curl Defining Cream is one of our most popular products for curly hair. This argan oil-infused curl definer features an advanced heat-activated technology that provides a curl memory factor to fight frizz and create well-defined, natural-looking, bouncy curls that last. Winner, Curl Defining, 2022, 2019 Allure Readers' Choice Awards How to use Apply 1-2 pumps to towel-dried hair. Distribute product throughout hair and diffuse to activate and define curls. For a more relaxed curl, let hair dry naturally.