Liposomal Tetra-Ceramide uses nanotechnology to encapsulate Ceramides, with high-purity phospholipids as the carrier, the liposome structure is similar to the sebum membrane and can better play its role in repairing the barrier. Encapsulated high-content of ceramide EOP. The EOP, NS, NP, and AP used are natural equivalent ceramide structures, and are accurately proportioned according to the native ratio of lipids between human cells. The molar ratio of ceramide: cholesterol: fatty acid is 1:1:1 molar concentration, which can better promote the normal repair of skin barrier. When used in formulas, ceramide crystallization will not occur and the stability is good. The formula can be directly stirred and added during the cold preparation stage, making it easy to apply.