This is the best brow tint I've ever used, and I've used a ton!  "Sinopia Brown" is the perfect color for me, which has been really hard to find as I have blonde hair and most of these tints come out really dark.  The reality is that they're never going to last the way they say they will, but I use it like a regular brow product when I put on my makeup.  I can just apply this and go, whereas other products are too dark to do that, I have to use them at night and then too much washes off the next day in the shower.  I love knowing that no matter what happens, my brows aren't going anywhere -- I can go swimming, I can crash at a friends, whatever, and I still have eyebrows at the end of the day and into the next if I don't scrub my face.