The rejuvenating serum is a highly effective professional product for revitalizing the skin of the face, neck, décolleté area, and the backs of the hands. The biosignal molecule complex (cytokines, growth factors, exosomes) activates the production of endogenous collagen, elastin, and hyaluronic acid by fibroblasts, improves microcirculation, and nourishes all layers of the skin. Hypoallergenic and ophthalmologically tested.