YOUNGER-LOOKING SKIN. SoieCeramide plays an essential role in structuring and maintaining water permeability barrier function of the skin. It increases the moisture content in our skin as well as prevents the moisture from leaking out. It helps hold the skin together by forming a protective layer that limits moisture loss and protect against visible damage from pollution and other environment stressors. In summary, the hyluronic retains moisture and the ceramide locks it in.