U.S. Food and Drug Administration warned on Monday that black henna might not be the best option for a tattoo. The effects can be disastrous since the chemical used in the black (so-called) henna can be injurious to the skin.
“Just because a tattoo is temporary it doesn't mean that it is risk free," says Linda Katz, M.D., M.P.H., director of FDA's Office of Cosmetics and Colors.
MedWatch, FDA's safety information and adverse event (bad side effects) reporting program has received several reports of “redness, blisters, raised red weeping lesions, loss of pigmentation, increased sensitivity to sunlight, and even permanent scarring” on skin after applying black henna.
Black henna is quite popular in many Asian and Middle-Eastern countries. It is a tradition to apply henna on the bride’s hands and feet especially in the Indian sub-continent countries like Pakistan, India and Bangladesh. The proper color of henna stain is usually orange or reddish brown. Lately, people have developed a liking for black-stain henna and like many other desirable things in life, it isn’t suitable for us.
FDA explains: “The extra ingredient used to blacken henna is often a coal-tar hair dye containing p-phenylenediamine (PPD), an ingredient that can cause dangerous skin reactions in some people. Sometimes, the artist may use a PPD-containing hair dye alone. Either way, there's no telling who will be affected. By law, PPD is not permitted in cosmetics intended to be applied to the skin.”I think it goes without saying that this black chemical (not henna) should not be used by people anymore. Girls should stick to the natural brown/orange henna for their own good. Certainly, all that glitters is not gold.
Following are some (really bad) examples from Twitter: