INVIGO Volume Boost with Volume Boost-Blend™: Lightweight formulas give manageability and shine without weighing down the hair. Bodifying Spring Force Polymers surround the hair fibers and help to create the most voluminous looks during blow-drying. Cotton is a soft but stable fiber with similar stability and softness needed for voluminous fine hair. After shampooing, apply to damp hair. Distribute evenly and comb through. Do not rinse. Blow-dry for maximum effect.