The Lancôme L'Absolu Rouge Drama Ink (£27.50) formula is quite possibly the thinnest liquid lipstick we've ever tried. But don't mistake thin for lack of quality. The lipstick, which is a water-in-oil emulsion with a semi-matte finish, packs tons of pigment so you get just as much opacity and coverage as any other liquid lipstick; the only difference is Rouge Drama Ink feels completely weightless, to the point that you forget it's even on your lips. Available in 15 shades all in a red, pink, and neutral palette.