Living Proof Full Thickening Mousse makes flat, lifeless hair look, feel and behave like natural thick, bouncy hair.

Living Proof Full Thickening Mousse is designed for flat, lifeless hair. This ultra-lightweight formula features breakthrough Poly Beta Amino Ester-1, a new technology invented by our scientists that deposits a flexible, micro-pattern of thickening points on each strand. These thickening points add just the right amount of natural texture to the hair strands to make limp hair look, act and feel like full, thick hair. Because it's a completely flexible technology, it lasts throughout the day without collapsing or becoming stiff and crunchy. It also contains just the right amount of flexible hold to help keep your style in place. Safe and effective on color or chemically treated hair, too.