Famous How Long Should I Leave Henna On My Hair Ideas. Web however, a lot of people like to soak their henna for good six to eight hours so that the mix is ready entirely, and consistency is maintained. If you are looking for a darker brown or black color, it.
Web you can leave the henna on for as long as six hours if you want to achieve maximum vibrancy. Rinse the henna slowly under cool water. Therefore, the frequency of application depends on how fast your hair grows, especially if you are using henna to cover gray hair.
