Fragrance chemicals refer to the compounds used in creating perfumes, colognes and other scented products. These chemicals are responsible for giving a particular fragrance or smell to various cosmetic items such as soaps, shampoos, lotions, etc., as well as air fresheners and cleaning agents. The term "fragrance" on an ingredient list can indicate the presence of these chemicals which are often synthesized in a laboratory setting to create specific scents that appeal to consumers.