Root Pump Plus Humidity Resistant Volumizing Spray Mousse is a spray-on mousse from Sexy Hair that delivers mousse in spray form directly onto the roots, built for medium to coarse hair that needs lift without extra weight. Spraying instead of dispensing foam into your palms first means you can target just the scalp and mid-shaft, and the humidity-resistant polymer film holds that lift for up to 72 hours in damp conditions. Shake well, spray onto damp roots and mid-lengths, then blow-dry hair up and away from the scalp with a round brush to set the volume. Because it's formulated for coarser hair, finer hair types may find the hold heavier than they need.