Super-assembled collagen emulsion and preparation method thereof

The invention discloses a super-assembled collagen emulsion and a preparation method thereof. The nano-emulsion is prepared by adopting a supramolecular self-assembly mode, namely, collagen with positive charges and tannic acid with negative charges are combined to form a collagen-tannic acid compound through electrostatic interaction, molecular hydrogen bonds and other non-covalent interaction, and then oxidized hyaluronic acid or Ectoin is used as a packing material to further wrap the compound to form the nano-emulsion. The super-assembled collagen emulsion prepared by the preparation method disclosed by the invention is milk white and semitransparent in appearance, uniform and stable in state and free of generation of suspended matters. The size of nanoparticles in the prepared emulsion is very small, the skin transmittance of collagen can be effectively improved, and the problem that the collagen is easy to decompose and deteriorate is solved, so that the moisturizing and repairing functions of the colla