No, the results of Henna Brows last for 2 – 4 weeks. To put it bluntly, the less you wash/clean the brow area of your face and the more gently you do it, the longer the results of the treatment will last. This means don’t exfoliate too much and don’t use harsh products around your brows. Other factors are also at play here – those with a drier skin type will probably enjoy the results for longer than those with an oiler complexion.