This eyeliner goes on very well. It is smooth and easy to apply. It is a liquid, so it does take some practice if you are use to using a pencil. It stays on for quite awhile and did not flake up like some liquid liners tend to do. This is a 2 pack and I believe that it will last for a long time. I did not have any adverse reaction or eye irritation when I used it. It seems to be a really good product. It looks nice once you learn how to apply it.