Henna tattoos are made of henna paste, which is applied on the skin in the desired pattern. It is left on the skin for several hours to facilitate staining. The stain will last for around two weeks to one month, depending on the method of application and after-care. One of the reasons behind the popularity of henna tattoos is its temporary nature. The tattoo will fade on its own and there is no need of adopting tattoo removal. Even if you want to remove these tattoos, it is very easy, as compared to conventional ones. You don't have to sport the same design for a whole lifetime. Another reason is the lack of pain associated with the conventional tattoos, which need needles to etch the design. In case of henna tattoos, only henna paste is required.