Sensitive Skin Lab Upgrade Eye Contour Concentrate Serum is a rejuvenating treatment for the eye contour especially formulated to help fight the signs of aging. Besides a combination of ingredients that allow a firming action of the eye contour and retard skin aging, this product also contains caffeine. For that reason, this eye contour has also the ability to reduce puffiness and dark circles, since caffeine has a decongestant and energizing power.