FDA warns against Henna tattoos
The Food and Drug Administration is warning the public about certain types of temporary Henna tattoos.
The ink in question, which being sold as Henna ink, is often simply cheap black hair dye.
The coal-tar based dye contains p-phenylenediamine (PPD), an ingredient that can cause dangerous skin reactions including: redness, blisters, lesions, loss of pigmentation, and even permanent scarring.
PPD is currently banned from use in cosmetics that are applied to the skin.