Many consumers are comforted when a product makes a claim to be hypoallergenic, but the truth is the term has no meaning whatsoever.
"There are no Federal standards or definitions that govern the use of the term 'hypoallergenic.' The term means whatever a particular company wants it to mean."
http://www.fda.gov/cosmetics/labeling/claims/ucm2005203.htm
— US Food and Drug Administration
http://www.fda.gov/cosmetics/labeling/claims/ucm2005203.htm
— US Food and Drug Administration