I'm always searching for an undereye concealer that will cover my dark circles without emphasizing the fine lines under my eyes. I guess the name of this product enticed me to buy it. The coverage is quite good, and it seems to last for a long time, but it certainly doesn't "smooth" the lines under my eyes. Unfortunately, the product did settle into my fine lines after a bit. Maybe my expectations were unrealistic, but I'm still on the lookout for the concealer I can't live without!