keratin hairspray

Many keratin sprays are marketed for all hair types, while others specifically target wavy, curly, coarse, dry, or frizzy hair—usually promoting smoothing, frizz control, and added shine.

They advertise anti-frizz and anti-humidity benefits by sealing hair cuticles, taming flyaways, and smoothing strands to keep styles softer and shinier in humid conditions.

Instructions vary by product but commonly include: shake before use; spray evenly from about 10–12 inches away; apply to damp, towel-dried hair before styling or to dry hair after styling for a finish; and reapply lightly as a mist for touch-ups.