ProsI like slightly thicker eyebrows, so I use a tattoo pen to draw a guide and then go over it with a pencil. This makes it quick and easy to draw eyebrows! For a lighter eyebrow look, you can just use the tattoo pen alone. The ink formula is like a marker, and the colors are really nice. The amount of product is quite generous.
ConsAfter continued use, the ink doesn't come out as well, so I have to shake it to use it. Then suddenly, a lot of ink comes out at first, but the end part comes out lighter. If I apply too much pressure, the brush gets deformed.
TipA useful tip is that if the ink is running out or the brush shape has changed from shaking it, you can fill in the hairline area to make it look natural and pretty (for light brown hair). I remember buying this on sale, and it's a versatile product that I use quite often.