Body sprays, oils, face creams, moisturizers, shampoos and even deodorants—so many beauty products that we use on a daily basis contain “fragrance.” But, aside from the fact that fragrance adds a scent, what exactly “is” it? This question has proven to be a tough one to answer because fragrance companies are not legally required to share the ingredients in their “fragrance mixtures.” It is, quite simply, status quo for beauty brands to keep their secret ingredients to themselves.