This is a beautiful liquid charcoal coloured eyeliner. It's difficult to find charcoal (grey) coloured eyeliners, and this shade and formula are both very nice. Whilst the colour is predominantly grey, there is an ever so slight blue undertone. I have re-purchased this product several times since first discovering it in a Space NK shop. The applicator tip is very fine and easy to apply a thin and precise line. I use this to define my upper lash line and the colour is subtle looking although not too harsh, and can be layered for a more dramatic look.