Would you love to try I Don't Know What Fragrance Enhancer? Order a sample and ensure it's the right fragrance for you. With Smallflower's convenient sample program, you can experience any number of fragrances, at a fraction of the cost of a full bottle, before you buy. Samples are hand-poured in-house and presented in a 0.7 ml size (each 1 ml vial is filled 3/4 full for ease of application). About I Don't Know What:A fragrance enhancer with transparent radiance that gives any perfume a certain, as the French say, ?I don't know what.? Top Notes: Bergamot Essence Heart Notes: Iso E Super, Vetiver Acetate Base Notes: Civettone, Firsantol, Ambrox Super