Kevyn Aucoin Precision Brow Pencil in Brunette. This ultra slim, dual-ended retractable brow pencil and brush sculpts, defines and shapes eyebrows to pure perfection. The thinnest but strongest pencil format glides on smoothly to draw individual hairs to give eyebrows a full appearance with a natural look. The pigments can be smudged on or applied with thin strokes. Vitamin E ensures every brow hair is strong to prevent breakage. The spoolie brush helps brows maintain a sculpted look.. Water resistant. Paraben free. Sulfate free. Phthalate free.. 0.1 g / 0.003 oz.