Henna has a very low allergic potential, and severe allergenic contact dermatitis is mainly caused by p‐phenylenediamine (PPD), which is added to temporary black ‘henna tattoos’, and potentially also by… Click to show full abstract
Henna has a very low allergic potential, and severe allergenic contact dermatitis is mainly caused by p‐phenylenediamine (PPD), which is added to temporary black ‘henna tattoos’, and potentially also by some heavy metals.
               
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