Duo Concealer Marble from Nilens Jord Is a 2-in-1 concealer for a light as well as neutral skin tone, with a medium covering ability, which perfectly covers fine lines, unevenness and dark rands under the eyes. The result is a fine, natural and well-groomed look. The Fixed Concealer is lovely creamy and covers great less unevenness. The liquid concealer is silky soft and easy to use to the more delicate areas, such as. skin under the eye. Application Apply the concealer directly to the skin and the DU gently with your fingertips or a concealer brush, as Nilens Jord Foundation And Concealer Brush, to achieve the best result. Work the Concealer into the skin with the tip of the brush in straight strokes, in the desired areas, to achieve optimum coverage. You can use Duo Concealer alone or under makeup and both before and after your Foundation, depending on what you prefer. To prolong the shelf life of the concealer and your other makeup you can benefit Nilens Jord Priming mist or priming & setting loose before the makeup is laid and after the makeup is laid.