The Obagi ELASTIderm Tightening Facial Serum with patented Bi-Mineral Contour Complex helps support skin elasticity so it can bounce back from the signs of aging, resulting in firmer-looking, more resilient skin. Ingredients are suspended with FlexFluid technology, creating a soft, elegant and lightweight product experience that increases signs of skin elasticity in just 24 hours. As we age, we lose and damage elastin, an essential protein responsible for skin’s elasticity and ability to keep its bounce. The natural depletion of elastin is accelerated by sun exposure, resulting in the appearance of sagging and crepiness as well as the loss of firmness in the skin. Powered by patented and proprietary Bi-Mineral Contour Complex™, the Obagi ELASTIderm Tightening Facial Serum is specifically designed to promote the three necessary stages of developing healthy, functional elastin. For all skin types.