Ceramides
Wikipedia reports, "Ceramide is the main component of the stratum corneum of the epidermis layer of human skin. Together with cholesterol and saturated fatty acids, ceramide creates a water-impermeable, protective organ to prevent excessive water loss due to evaporation as well as a barrier against the entry of microorganisms. With aging there is a decline in ceramide and cholesterol in the stratum corneum of humans." In this category we have included treatments using ceradmide.