Frizz Ease 3 Day Straight Flat Iron Spray with Keratin, transforms curly, frizzy hair into a straight, smooth style that lasts up to 3 days*. In just one use, the heat-activated formula protects against heat damage and wraps each hair strand to seal in longer lasting straightness without weighing hair down. Directions for use: Apply spray evenly throughout DAMP or WET, not dry hair. Start with 7-15 sprays, using more or less depending on amount of curl, hair length & thickness. Comb to distribute evenly and blow-dry hair straight. Finish with a flat iron (hair straightener), straightening hair in sections. *or until your next shampoo if less than 3 days