The U.S. Food and Drug Administration (FDA) encourages everyone to report adverse reactions to permanent and temporary tattoos and permanent makeup to the FDA's MedWatch. This agency monitors problems caused by cosmetic products and ingredients, including color additives.
5600 Fishers Lane
Rockville, MD 20852-9787
By phone: 1-800-FDA-1088 (1-800-332-1088)
By Internet: https://www.accessdata.fda.gov/scripts/medwatch/medwatch-online.htm