If you are using this product, you might want to stop (in case all of the other issues with Lime Crime haven't already deterred you). Here's the FDA warning letter. They seem to be using ingredients in the product that are not considered safe for use on the lips (ferric ferrocyanide and ultramarines). Apparently the ingredients list on their website no longer includes these two substances, so the other possibility is that they were mislabeling things, which is also not great.
I'm deep in packing and moving mode this week (and I also have to fit in a quick trip across the border to Toronto for a symposium in the midst of it all), so I wasn't planning to post until I finished with all the chaos, but this seemed important enough to mention quickly.