Controls / De-Frizzes / Protects Our proprietary Alpha Keratin 60ku® instantly fills and seals cracked cuticles while featherweight polymers and lipids hover above, repelling air-born humidity. This lightweight, milky mist is alcohol free, so it won’t create build-up or dry out hair, and it’s heat protective up to 450 degrees, leaving hair healthy, silky-soft, and free of frizz for days.