Perfume stinks—it contains stuff that should only live in antifreeze and gas tanks. But these purveyors of natural fragrances, supermodel Annie Morton and her sister-in-law Natalie Szapowalo, curate careful blends that to us smell like a Hawaiian holiday (Fleur Sauvage) and eating creme brulée by a cedar fire (Kesu). Here, they give you a few good tips that any self-respecting scent lover should know.—Shot and edited by Brit Liggett

Annie and Natalie's website: Tsi La Organics | Location: Micheal Angelo's Wonderland | Read more about Tsi La fragrances: Sprig product spotlight