The Juliette Has A Gun Not a Perfume Eau de Parfum fragrance made out of a single element called Cetalox. Usually used in perfumery as a base note, it plays the lead role here... Another advantage of this particular composition, is that it is entirely allergen free. The result is minimalist, elegant, pure. Top notes: Cetalox Heart notes: Cetalox Bottom notes: Cetalox. A fragrance like no other, Not A Perfume offers a scent that is uniquely you. The pioneering formula by Juliette Has A Gun is made entirely out an element called Cetalox. Starting off with a clean and fresh aroma, the ingredient adapts to the skin’s chemistry as the scent wears, transforming into a fragrance that is one of a kind.