This foam is designed for people with wavy or curly hair (any curl type, though it's especially suited to fine or lower-density curls) who want more volume and fullness without heaviness. It's a consumer retail product used as part of a normal wash-day routine — no professional application needed — and it's applied to soaking-wet hair, so it fits best into a wet-styling routine rather than being used on already-dry hair.

The foam's role is specifically to add root lift and body to curls and waves without weighing them down, using a sunflower-fatty-acid-based complex rather than heavier oils or butters — which is why DevaCurl positions it as a volumizer rather than an all-purpose styler. It's meant to be layered into a wet-hair routine before diffusing, so the volume is built in from the roots rather than added after the style is already dry.

Apply to soaking wet hair right after cleansing and conditioning — don't wait for it to air- or towel-dry first. Dispense a small amount into your palm, rub your hands together, then flip your head over and scrunch the foam into your curls, focusing on the roots for lift and working through the mid-lengths and ends. There's no need to rinse it out. From there, style as usual: air-dry or diffuse, scrunching curls upward toward the scalp as they dry.

As a genuinely lightweight foam rather than a dense mousse, it adds root lift and fullness without the stiffness or residue heavier volumizers leave behind, and being formulated without sulfates, parabens, or silicones, it fits neatly into a normal wash-day routine. The catch is that it's meant for soaking-wet hair, so it isn't a quick fix for dry or second-day styles, and very coarse or high-density curls may still need it layered under a gel or cream — using more than a small amount can also leave a slightly crunchy cast until it's scrunched out once dry.