Long-Term Effect of Some Skin Moisturizers

Abstract

The long term moisturizing effect of ten different skin care products was tested on 22 female volunteers using a low frequency electrical bioimpedance instrument. We found large differences in the moisturizing effect between different products and also large interpersonal variations. Products which gave a large increase in skin hydration on one person could have no effect on another person. These results suggest that there are differences in skin types and that one particular formulation with a given mode of action may be ideal for one skin type but inappropriate for another.