Mehndi/Henna is used as a temporary dye to artistically decorate hands
and legs usually during a marriage ceremony or during festivals. In
India, Mehndi is said to be auspicious and considered a symbol of "Soubhagya"
(good fortune). Therefore, it is not applied to widows. Mehndi and Henna
are interchangeable names because they are applied to both the plant
from which leaves are obtained and also to the body art.Mehndi is used for coloring hair and for temporary body art. It does not cause allergies. Mehndi when used coats only the dead cells of the upper layer of skin. The depth of penetration depends on the duration for which the paste was left on the body. The satin lasts longer if it is fully absorbed by the skin.
Another variety of Mehndi called Black Henna is also common in Middle East. It is an artificial product created by the addition of Paraphenylenediamine (PPD) to natural henna to create a black stain. This henna causes a lot of skin allergies and requires medical treatment.
Origins
Some historians and researchers believe that Mehndi originated in India. While others believe that it was brought to India by travelers from Middle East and North Africa. The illustrated Bodhisattivas and deities on the cave walls of Ajanta prove that Henna was part of the Indian culture in the 4th and 5th centuries.
Designs of Mehndi/Henna
Henna has been associated with special celebrations like engagements, weddings, the eighth month of pregnancy, the birth, the 40th day after a woman gives birth, naming ceremonies, festivals, etc.
Various designs are applied and they symbolize good health, fertility, wisdom, protection and spiritual enlightenment. The Indian Mehndi styles involve fine, thin lines for floral and paisley patterns covering hands, forearms, shins and feet. The Arabic styles are quite in fashion now and are usually large and floral.