How does henna work?
In the process of body art the leaves of the henna plant (Lawsonia inermis) are dried and crushed to a powder before being made into a paste. Lawsone, the pigment found in henna leaves, is a tannin like those found in wine and tea, it infuses porous surfaces, like skin, with a darker pigment but will not chemically alter the surface permanently
When applied to the skin the henna paste imparts a non-toxic, natural, red- brown dye. The design fades as your skin naturally exfoliates. Generally the dye lasts from 7 to 10 days but may last as long as a month depending upon factors such as the location of the design on the body and the additional ingredients in the henna mix.