Additional Details ------------------------------ Directions: Apply a small amount of the lightweight leave-in treatment serum to damp or dry hair, distributing evenly from mid-length to ends. Style as desired. Pre-style protection from heat styling and the drying effects of the sun, while providing plant-powered frizz defense for up to 72 hours. The vegan hair-smoothing formula features a plant polymer shield and botanical smoothing oil blend to protect against humidity, keeping your sleek hair smoother for longer.