Epidermal stem cells are the only cells that have the capacity to generate new cells for skin renewal. However, as the years go by, the rate of cell proliferation is reduced and consequently cell turnover slows down.   PhytoCellTec Symphytum has clearly been shown to boost the regenerative power of epidermal stem cells and their ability to build new tissue. For this study a novel cell culture assay based on a culture medium that mimics the tissue environment of aged skin was developed. PhytoCel...