YSL Gris Underground (38) is a very cool-toned, light gray with a cream finish. It is a limited edition nail lacquer that retails for $28.00 and contains 0.34 oz.
YSL Gris Underground (38) La Laque Couture ($25.00 for 0.34 fl. oz.) is described as a "cloud of grey." It's gray, blue, lavender; a muted, grayed cornflower blue to me. Very cloudy, very fall. It was opaque in two coats, and the consistency was just slightly on the thicker side, so the drying time seemed longer than average. It applied fairly easily, particularly because it has a wider brush that enables better coverage in a single stroke so it minimizes unevenness. The formula isn't forgiving if the prior coat is only partially dry, so make sure to allow enough time between coats for drying. Essie Rock the Boat is lighter, slightly less gray. NARS Galathee is much grayer. See comparison swatches.
Created by Yves Saint Laurent’s International Creative Director of Beauty, Lloyd Simmonds, this concentrated nail color remains intense with shine and hold for at least four days. Enriched with chil rose bush oil to strengthen and protect nails, the formula has a quick drying time and comes with a new custom-made brush that allows an easy and fast application. The nail lacquer perfectly adheres to the brush that pulls the drop instead of pushing it for a flawless and intense result.