Contains Resorcinol, Phenylenediamines & Hydrogen Peroxide, Temporary “Black Henna” Tattoos May Increase Your Risk Of Allergy. This product contains ingredients that may cause skin irritation on certain individuals and a preliminary test according to accompanying directions should first be done. This product must not be used for dyeing the eyelashes or eyebrows. To do so may cause blindness. Wear suitable gloves.