As much as I love it, I do have two main gripes with this product. The first is that it's a little drying and can cling to any imperfections on the lip. However, that's easily counteracted with a good base of lip balm. Secondly, although this is a pencil, it's not possible to sharpen it and there isn't a huge amount of product in there. Having said that, at only £7 per crayon, I can live with that.
My Lip Crayon:
Powder Room by Topshop