Laura Mercier Brow Definer.
I first saw this recommended by Zuzu's Petals at Everyday Beauty, and made a mental note to investigate next time I was at the mall. When I first started filling in my brows, I used a brow brush and powder, which allowed a lot of precision as well as giving a very natural look, but I noticed that the powder was often gone by mid-afternoon. I switched to a creamy pencil, but found it harder to get a really natural look. This product seems to be the best of both worlds: applied with a regular brow brush I get the ease of application, precision and control (and a natural look) but the gel formula of this product seems to last longer than powders. I'm actually using the lightest color (Fair) which is great for my "le no-makeup look." But have a Sales Associate help you make your best match from the three available colors.
Have you tried this? What did you think? Do you have a favorite brow product?