To supplement collagen, ensure adequate intake of protein, common food varieties include eggs, milk, beef and lamb, pig’s feet, bird’s nest also have a certain amount of content, but these foods, in the supplemental sense, do not differ much. The main component of collagen is protein, protein is composed of amino acids as raw materials, the body can not directly absorb protein, nor can the protein in food, directly formed into its own protein. The difference in the type of food has little effect on the formation of collagen. Foods are metabolized into small amino acid molecules and then absorbed to form. In addition to raw materials, age and metabolic level, also have a great impact on the formation of collagen. Regular medical aesthetic treatments such as ultra-pulsed light are beneficial to collagen synthesis.