What It Is Curl Defining Leave-In Treatment with citric acid and Redken’s Bonding Care Complex to protect and restore the pattern of damaged curls. With heat protection up to 450 degrees Fahrenheit. 72-hour defining, hydrating, & frizz fighting. 92% saw healthier curls in 1 use*. *based on consumer test results, acidic bonding curls system What It Does • Protects hair against heat up to 450 degrees Fahrenheit • 12x easier to detangle*** • 12x smoother*** • 12x more conditioned*** • Builds bonds & repair curl strength • 92% saw healthier & more defined curls in 1 use* • Silicone-free, vegan formula. Formulated without sulfates, silicones and parabens. • Hydrate and improve curl elasticity* • 85% less frizz for up to 96 hours** • Up to 96 hours of shiny and defined curls* • Great for curl types 3A-4C • Curl Bond Technology with Citric Acid and Glycine *based on consumer test results, Acidic Bonding Curls system **system of Acidic Bonding Curls shampoo, conditioner, and leave-in vs. non-conditioning shampoo ***Acidic Bonding Curls leave-in vs. non-conditioning shampoo What Else You Need to Know • Acidic Bonding Curls is a silicone-free and vegan formula. • Formulated with nourishing ingredients like avocado oil and camelina oil.