Abhishek Sharma Henna is a natural herb that is popularly known as Mehandi in the most parts of Asian countries. It has been used by men and women. Henna powder is one of the ingredients that have been in use for a lot of beauty reasons. Henna plant is one of the oldest cosmetics ever,it is our own natural hair dye. It has been around long before hair colour was invented. It works both as a hair dye and a natural.