Archive for July 2017

July 7th, 2017 by Dr. Hannah Sivak

The image that springs to mind when we read “skin barrier” may be cartoonish, with an impermeable layer of skin resisting entry of anything and everything. This is a false image projected by skin care companies trying to convince us that useful actives will not penetrate the skin unless we use sophisticated delivery systems, a gimmick to sell more products at higher prices. The truth of it is, whatever you apply to the skin will be absorbed, for better and for worse. What is the skin barrier? The term “skin barrier” refers to the main function of the skin: limiting water loss through the skin. How does the skin limit…