From IGK website: Achieve Sleek, Glass-Like Hair With This High-Shine Finishing Serum That Delivers 4-Day Frizz Control And Boosts Shine By 75%. Powerhouse Formula Smooths, Provides UV Protection And Tames Flyaways Even In High Humidity. Finish Any Style Like A Pro With This Concentrated Serum For Sleek, Shiny Hair That Lasts. Used once, too heavy for my hair. Smells super good!