Long lasting, but not as long as I hoped for
It really does last for at least 3 days, mostly on the existing eyebrow hairs and the space in between them.  I found that the areas outside the brow hairs washes away and to make my brows look wider or longer I have to refresh the edges daily.  I like the flow of the ink though the "fork" shape doesnt seem to make a difference in creating individual "hairs" like I thought it would.
Rating: 4 stars