ABSTRACT
Glycerine is incorporated into cosmetics primarily with the aim of "moisturizing" and preserving the suppleness of skin. Glycerine is a natural metabolite present in the skin, liberated during the enzymatic hydrolysis of glycerides and phospholipids. Glycerine is a natural metabolite present in the skin, liberated during the enzymatic hydrolysis of glycerides and phospholipids. The probe should be applied with light, even, pressure, parallel to the skin surface. The basis for the Evaporimeter is that in the absence of air currents, a boundary layer of air develops near the skin surface. The application of an occlusive material to the skin surface will physically block the surface and lower Transepidermal water loss for a time. The skin exhibits very complex electrical properties, which could in principle be related to its physical and chemical state. The stratum corneum serves as a barrier to the evaporation of water from the viable epidermis within, while protecting it from external chemical and physical insult.
