23 of September's Buzziest New Makeup, Hair, and Skin Care Launches

"Sexy, undone hair has been by far one of the most covetable styles of Summer, and I highly doubt it'll be going anywhere when Fall hits. To achieve lived-in waves, I've been curling my hair with a wand and then finishing my style with the IGK Down and Out Dirty Spray ($29). The new product has a finish contrary to its dirty name. A few spritzes of the aerosol will break apart your uniform waves, allowing your hair to looked lived-in but not frizzy. It also has everyone's favorite ingredient, coconut oil, to give your strands shine and leave them soft to the touch. Its scent is equally enticing — the lingering vanilla and coconut notes smell like a delectable perfume." — Aimee Simeon, social editorial assistant