Controls | De-Frizzes | Protects A weightless, humidity-halting spray with ingredients that help protect hair from UV damage and top frizz in its tracks for up to 72 hours of heat-safe, silky-smooth strands. Frizz Block™ Smoothing Spray creates an impenetrable veil of humidity-blocking, frizz-stopping, moisture-locking mist that protects strands for up to 72 hours. Created for harsh humid conditions, this alcohol-free, heat-activated spray is the prescription-strength equivalent of traditional anti-frizz sprays. Virtue's proprietary Alpha Keratin 60ku® instantly fills and seals cracked cuticles while featherweight polymers and lipids hover above, repelling humidity. This lightweight, milky mist is alcohol free, so it won’t create buildup or dry out hair, and it’s heat protective up to 450 degrees, leaving hair healthy, silky-soft, and free of frizz for days. IDEAL FOR: - Hair prone to frizz in heat and humidity. - Safe for colour-treated and chemically treated hair.