-Spirulina protein strengthens and nourishes while an innovative formaldehyde-free bonding polymer mimics the coating and smoothing properties of a keratin treatment when activated by heat. IGK Good Behavior Spirulina protein smoothing spray also helps to cut down on blow-drying time and protect against humidity, heat and UV damage, leaving hair soft, shiny and frizz-free. -24-hour frizz control. 450*F Heat Protection.