Is the Use of PPD in Black Henna Tattoo Criminal or Remiss?

Para-phenylenediamine (PPD) is a known strong sensitizer and allergen. It has been directly associatedwith severe allergic contact dermatitis reactions and systemic toxicities. While PPD is permitted inhair-dye with restriction, it is prohibited for direct use on skin. Unfortunately, skin application continuesthrough temporary tattoos with black henna dyes, because these products are unregulated by the US Foodand Drug Administration. Policy change, and parent and child-oriented educational campaigns are necessaryto build knowledge of this serious issue.