There is currently no requirement to disclose fragrance components used in consumer products. A listing of nearly 3,000 compounds used by the fragrance industry indicates that approximately one third of the compounds are known allergens or respiratory irritants. The Food and Drug Administration has noted an increase in the incidence of adverse reactions to fragrances in consumer products among the general population, with an increase in the severity of the responses, including immune and neurological impacts. An Institute of Medicine report placed fragrances in the same category as second hand smoke for triggering asthma in school age children and above .
Hollender, Jeffrey, et al. Naturally Clean: The Seventh Generation Guide to Safe & Healthy, Non-Toxic Cleaning, New Society Publishers, 2005, p. 59.; http://www.cfsan.fda.gov/~dms/cos-safe.html; Institute of Medicine , Clearing the Air: Asthma and Indoor Air Exposures (2000)