Bamboo Fiber Full Thickening Boot Booster plumps tresses with a fortifying blend of bamboo fibers and soy proteins for strands that have voluptuous body and fullness. This thickening blend adds body to tresses, giving you big, touchable, beautiful strands. Direction to Use: Lightly mist onto clean, damp hair, concentrating on roots. For extra volume flip head upside down and blow dry with a round brush. Do not rinse. Can also be sprayed on dry hair for touch-ups thorough the day.