Ceramide is the latest generation of moisturizer developed in recent years. It is a water-soluble lipid substance. Its structure is similar to that of the substances that make up the stratum corneum of the skin. It can quickly penetrate the skin and combine with the water in the stratum corneum to form a network structure that locks in moisture. 

    The effects of ceramides on the skin: 

1. Moisturizing effect: Ceramides are the main components of lipids in the stratum corneum of the skin, which can help repair the skin barrier and make the skin soft and lustrous.  However, as one ages, ceramides gradually decrease. When the skin lacks them, it will become dull and dry.  

2. Barrier function: When there is an adequate amount of ceramide in the skin, it can resist external stimuli. However, if it is lacking or absent, the skin loses its natural protective function and has no ability to defend against all physical and biological injuries from the outside world.  For instance, the skin is more prone to sunburn when exposed to the sun and tends to turn red when the weather gets cold, etc. 

3. Anti-allergic effect: This is good news for children with thin skin. Ceramides can help thicken the stratum corneum, enhance the overall skin's tolerance, protect against the invasion of harmful substances from the outside, prevent sensitivity, and also have the effect of repairing red blood vessels. 

4. In addition, ceramides also have excellent anti-aging, auxiliary whitening and antioxidant effects.