Curl definition that lasts through the day?â and the next one. Introducing Virtue's new Curl-Defining Gel, a true two-day curl perfector that brings back those supple, springy, frizz-free curls you had before age, heat tools and gravity got in the way. The smooth, velvety, sulfate-free, silicone-free gelee glides through the hair, delivering a new level of hold and hydration. Loaded with Alpha Keratin 60ku¬® plus heat, color and pollution protectors, it blocks out humidity and environmental aggravators, so those perfect, healthy curls it creates, will stay that way.