A henna tattoo is a traditional technique used to beautify the body. The nice thing about henna tattoos is that this is a temporary medium: The tattoo only lasts 2 or 3 weeks, so unlike a regular tattoo, if you decide you don’t want one after all, it will soon wear off. A henna tattoo is a good way to try a tattoo out before committing to a more permanent procedure. They are painless, and with a steady hand and patience, they are fairly easy to create.