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.

Fresh and dried leaves of Lawsonia inermis (Henna) were used in extracting dyes with variety solvents such as ethanol, acetone distilled water. To our knowledge, has been for the first time solvent to extract henna dye. These extracted sensitizers Dye-Sensitized Solar Cells (DSSCs). A sum six DSSCs fabricated. Spectroscopic studies (UV–Visible FTIR) recorded all photo-anodes prepared. J–V Chara...

It is also commonly mixed with henna (leaves of lawsonia alba) in Africa, Middle East and Indian subcontinent, which is traditionally applied to color palms of hands, soles and feet and to dye hair a dark red shade. 3-5 PPD causes contact dermatitis in susceptible individuals 6 , but when ingested, it causes acute angioedema of face and neck rhabdomyolysis and acute renal failure. 1-5 A case re...

Phenotypic plasticity is ubiquitous and primarily controlled by interactions between environmental and genetic factors. The migratory locust, a worldwide pest, exhibits pronounced phenotypic plasticity, which is a population density-dependent transition that occurs between the gregarious and solitary phases. Genes involved in dopamine synthesis have been shown to regulate the phase transition o...

Henna is very popular in the United Arab Emirates (UAE); it is part of the culture and traditions. Allergy to natural henna is not usual; however the addition of para-phenylenediamine (PPD) to the natural henna increases the risk of allergic contact dermatitis. The objectives of the study were to identify the presence and concentration of PPD in henna available in UAE. Fifteen henna salons were...

Hypersensitivity to para-phenylenediamine (PPD) and related compounds induced by temporary black henna tattoos has become a serious health problem worldwide. Different patterns of sensitization with various clinical aspects are described in literature due to PPD associated to henna tattoo and these manifestations are likely correlated with the immunological and dermatological pathomechanisms in...

P oximetry is a non-invasive method that uses the spectrophotometric principle to monitor oxygen saturation in the blood. It produces a plethysmographic wave from which oxygen saturation is obtained.1 It is has become increasingly used in outpatient clinics and emergency rooms in addition to its use in critically ill patients and during anesthesia.1 Although it is an accurate method in reflecti...

Henna, the dried and powdered leaf of Lawsonia inermis, is widely used as a dye for the skin, hair, and nails, and as an expression of body art, especially in Islamic and Hindu cultures. As it stains the skin reddish-brown, it is also called red henna. Black henna is the combination of red henna with p-phenylenediamine (PPD), and is used for temporary 'black henna tattoos'. This article provide...

Regarding the therapeutic effects and traditional applications of henna, it was tried to isolate and purify Lawsone from the leaves of henna marketed in Ahwaz city of Iran by various methods of maceration and Soxhlet extraction techniques in different polar and non-polar solvents. Maceration of the powdered leaves in hot water with stirring for around 6 hours was carried out followed by additio...