The Leave-in treatment for defining waves Curl by Living Proof is a 200 ml rinse-free treatment ideal for enhancing and defining natural waves. Thanks to its innovative formula, it tames curls without weighing them down, providing lasting elasticity and volume. Enriched with nourishing ingredients, it protects and hydrates the hair, making it soft, shiny, and easy to style. Perfect for those who desire a natural and defined look, while maintaining impeccable vitality and movement all day long.