Kosas’s Brow Pop Nano Ultra-Fine Detailing and Feathering Pencil has become my new favorite eye pencil. For me, I like an ultra thin pencil. Kosas’s pencil is the thinnest I have come across. It allows for precise application. The thinness also gives a realistic brow hair look. It is perfect for filling in sparse areas, or areas you wish had a bit more volume. It is easy to use and stays in place all day. It does not smudge and there is no fragrance. I found it removed easily with my normal face wash and eye makeup remover routine. It is amazing alone, and I love it with Kosas’s air brow. I will be buying this again when it runs out.