Cellular Renewal Serum – MD Strength supports cellular renewal and has potent regenerating properties which may improve skin firmness, elasticity, and tone. Fine lines and wrinkles may diminish over time, and skin may look and feel brighter, more luminous, and healthy. Cellular Renewal Serum contains cytokines and growth factors derived from bone marrow mesenchymal stem cell culture plus supplemental TGF beta-3 and IGF-1 from recombinant technology. Nanotechnology delivery enhances penetration of these potent pro-healing and anti-inflammatory biosignals. Numerous complementary actives make this the most advanced anti-aging serum available anywhere.