INDIAN PEDIATRICS, vol.46, no.5, pp.423-424, 2009 (SCI-Expanded)
Allergic and irritant reactions to henna are rare, Para-phenylenediamine, which is sometimes added to obtain a dark, blackish henna, causes the majority of contact dermatitis reported related with tattoos. Allergic contact dermatitis due to temporary paint-on tattoo with black henna is described in two adolescents.