Oh MJ, et al. - This trial was executed with the intention of preparing several types of phytoceramide containing diverse chain lengths of N-acylated fatty acids (FAs). In addition, it contrasted them with C18-ceramide N-stearoyl phytosphingosine (NP) with regard to their effects on the physiological properties of the stratum corneum (SC). It was deduced that natural oil-derived phytoceramides possibly reflected a novel class of ceramides for cosmetic applications in the development of an ideal skin barrier moisturizer.