Price: $15 - $20
+Fine, flexible tip for precise lining
+Dries quickly upon application
-If you have oily skin, I don't recommend this eyeliner. It can't take oil or sweat, and it can't take the heat. Don't shabu with this on. It melts and smudges within 2 hours, even if you're not doing anything active in particular.
-Lacks pigmentation: For the first couple of strokes, this eyeliner comes off fairly pigmented; however, after several more, the color comes off lighter and almost patchy. You can go over it to darken your lines of course, but I find that if you use this pen excessively (in general or during that particular moment), the ink doesn't come out as smoothly and easily from the brush (shaking it doesn't help either). When you reach this point, if you try to go over your lines to darken them, your strokes can scrape off your original lines.
-Because the tip is so fine, it takes longer to fill out a winged eyeliner.
-Unfortunately, this product doesn't last very long. The pen begins to dry out within a month (two, if you're lucky) of use.
.I think this eyeliner would actually work quite well for people with normal/dry skin. If you have combination/oily skin, I would recommend Physicians Formula Eye Booster 2-in-1 Lash Boosting Eyeliner + Serum instead (it's also cheaper).