Review title is Practice making your lines as it can become thick hairlike lines. [SEP] The idea of having 2 colors brown and black makes it nice to blend the colors and match my color.  The black one is still going strong but the the brown has already dried up.  It took some practice to get the thickness of the strokes perfect but now its easy to apply and only takes a minute for both brows.  Make sure that  the eyebrow area is clean and dry.