BOOST BOUNCE: HOLD LEVEL 2 Boost your curls with added shine, definition and frizz reduction with the EIMI Volume Bounce Boost. This curl enhancing mousse for curly hair is formulated to help protect your hair against dehydration whilst blow drying. HOW TO USE: Shake, spray, volumise. Apply evenly on damp hair. Let air dry or use the diffuser to get creative curls.