A short medical thread.

The negative effects of black henna on the skin.
الآثار السلبية للحنة السوداء على الجلد

Article no. 1

The child in the picture above developed a hypersensitivity reaction to a chemical called paraphenylenediamine (PPD) which is present in black henna.

They also mentioned that " these temporary tattoos can cause significant and lifelong sensitization. "

Article no. 2

It& #39;s an Emarati study, and this is their finding:

" The presence of PPD in the black henna increases the risk of allergic contact dermatitis among users of black henna. "

Article no. 1: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3244359/

Article">https://www.ncbi.nlm.nih.gov/pmc/artic... no. 2: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2872353/">https://www.ncbi.nlm.nih.gov/pmc/artic...