Review (4/5): It does work, but what a mess...
I have not yet used this product for the recommended 4-6 weeks but have already seen nice results after just a couple of weeks. I am anticipating that I will be even happier with the results after using it for the full 4-6 weeks recommended by the manufacturer. I've tried other products with little success. I have a couple of bare spots in one of my brows and I am definitely seeing fuller brows- I have even been able to skip filling them in with a pencil and it still looks fine. It has been a long time since I've been able to do that!
The downside is that this product is kind of gross. It arrived in the original packaging but there was oil all over the outside of the package and some of the product was gone even though it was sealed. This continues to be an issue- the bottle is always oily even though I always clean it off, and the shelf where it is stored always has a small pool of oil around the place where the bottle is stored.
I will put up with this messiness issue because I like the product. But icky.