What Is It: This weightless shampoo thoroughly cleanses and plumps from root to tip for the ultimate go-big moment now, and healthier-looking hair every time you use it — thanks to redensyl®. Why Is It Special: Provides instant fullness and lift. Contributes to a thicker look and feel. Cleans without drying or weighing down. Sets the stage for long-term volume. Who Is It For fine, limp, or flat hair