Obagi ELASTIderm Neck and Décolleté ConcentrateA powerful triple threat concentrate of patented Bi Mineral Contour Complex, retinoid, and arbutin formulated to target area specific signs of skin aging on the delicate skin of the neck and upper chest. ELASTIderm Neck and Dcollet Concentrate supports skin elasticity and visibly improves horizontal neck lines, fine lines, skin sagging, crepiness, and with noticeable results in as little as 8 weeks*. Full results at 12 weeks. *Results based on a 2021