Living proof's Full Thickening Mousse gives your hair the thickness and volume you crave. The ultra-lightweight formula features breakthrough Poly Beta Amino Ester-1, a new technology designed to deposit a flexible micro-pattern of thickening points on each strand of hair. The thickening points add natural texture to the strands to make limp hair look, act and feel like full, thick hair. Because it’s flexible, it lasts throughout the day without collapsing or becoming stiff and crunchy, and has just enough hold to help keep your style in place. Plus, it’s safe and effective on color- or chemical-treated hair, too. Brand: LIVING PROOF. Style Name: Living proof Full Thickening Mousse (1.9 oz.). Style Number: 948137_1.