Creating an efficacious cosmetic formulation can be problematic. There are so many factors to consider in formulating that by the time it comes to the efficient skin delivery of your active ingredient, most formulators simply hope for the best. This ‘hope-and-see’ mentality is not because they want to, but because it is simply too difficult for most formulators to transform complex skin delivery theories into practical formulations. No wonder many cosmetic formulators find it difficult to create...