Living Proof Full Thickening Cream is a lightweight styling cream that adds thickness to each strand to help fine, flat hair to look, feel and behave like naturally full,thick hair. It is powered by Living Proof's patented Thickening Molecule (PBAE), which creates thickening dots between hair strands so it feels like you have thicker hair. PBAE lasts 5X longer. ** Brand New ** 3.7 fl oz.