Why report a serious undesirable effect?

Reporting serious undesirable effects arising from the use of cosmetic products is extremely important.  The information you provide in such reports is the principle method we use to help determine if there is a broader public health issue associated with a cosmetic product. 

Sometimes serious undesirable effects are individual reactions to a particular substance within a cosmetic product. In such cases, additional examinations should be carried out by specialist physicians.  Re-exposure to the cosmetic product and/or its individual ingredients may be carried out through controlled dermatological patch testing. Such testing may indicate to which substance within the cosmetic product the individual is intolerant or allergic.