Stratum corneum that is the outermost layer of the pores and skin. Pores and skin cells which might be fashioned within the deeper Elysia Skin layers of the pores and skin take approximately 28 days to achieve the stratum corneum. The cells in this layer are all useless and require exfoliation to smooth off. However, notwithstanding the fact that the cells are vain, they form the first line of safety for our skin. They save you water loss and defend the skin from environmental pollutants and uv rays. Surfactantsas we end up .