Our Compressed Micro Mist Hairspray Boost Hold Level 3 is all about flexible, natural hold. The superfine Compressed Micro Mist permeates hair to hold your style. It’s also resistant to humidity and keeps frizz at bay for up to 24 hours--no matter how steamy things get. Ideal to perfect your most voluminous looks. Get the 'Boost’ look: First up, pick your most voluminous look; be it a side swept braid or big bouncy curls. Once you’ve used all your favorite TRESemme products to get the perfect oomph, give the can a quick shake, then spray evenly (about 10-12 inches from your hair) to capture it in all its glory.