Nano-shell skin care products do adopt nano-chitosan transdermal absorption technology of Chinese Academy of Sciences. According to the official publicity and related reports of the nano-shell brand, the brand cooperated with the Chinese Academy of Sciences to develop skin care products by using the nano-chitosan technology of the Chinese Academy of Sciences. This technology improves the absorption rate of skin care products on the skin by wrapping the active ingredients in nano-chitosan, thus enhancing the skin care effect. In addition, the nano-shell brand also incorporates a variety of imported protein, peptides, plant extracts and other ingredients, and further enhances the skin care effect of the products through the patented technology of nano-shell core invention.