The key to healthy, beautiful skin lies in the lipid barrier. In the past, doctors and researchers believed that the Stratum Corneum, our outermost layer of the epidermis, was just a layer of dead cells waiting to be sloughed away. But in the 1960s, Professor A. Kligman and his partners discovered that the Stratum Corneum, and the lipid barrier that keeps it intact like mortar in a brick wall, played a much bigger role in the health of our skin. 

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