Obagi ELASTIderm De-puffing Eye Serum is a targeted serum with bi-mineral complex and malonic acid for firmer, smoother-looking skin around the eyes, plus caffeine to help minimize the appearance of under-eye puffiness. The innovative stainless steel rollerball applicator provides a soothing effect and optimized delivery of the serum to assist in improving the appearance of puffiness under the eye. Caffeine is an antioxidant that helps reduce puffiness under the eyes, and the ELASTIderm Eye Serum combines this key ingredient with Bi-Mineral Contour Complex to help support elasticity for tighter-looking skin. Bi-Mineral Contour Complex is an advanced ingredient technology that harnesses zinc, copper and malonate. It was specifically designed to promote the three necessary stages of developing healthy elastin.