WHAT IT IS A density plumping mousse that fights humidity. WHAT IT DOES Kenra Professional Platinum Thickening Mousse 12 plumps hair strand by strand up to 150 and adds fullness and body to achieve the appearance of thicker hair. Resists humidity for up to 48 hours and provides thermal protection for up to 428 deg F. The flexible light hold keeps style in place for up to 24 hours without any flaking.