? Since it is a kind of protein, the absorption mechanism of collagen is also in line with all protein absorption processes: after a series of reactions in the digestive tract (gastric acid denatures protein through the actions of pepsin, trypsin and peptidase, etc.), it is finally decomposed into small amino acids before being absorbed by the human body. After amino acids are absorbed, they are rearranged and combined in cells to synthesize the new protein of human body. ? Therefore, the intake of this kind of food can only guarantee to provide the human body with enough amino acid raw materials for synthesizing collagen, but it cannot guarantee to synthesize collagen after digestion; Even if collagen is synthesized, there is no guarantee that it will be synthesized with skin dermis (it may also exist in bones, teeth and other parts). In fact, collagen is not a high-quality protein, and its amino acid composition is mainly non-essential amino acids, which can be synthesized by the body itself. ? The so-called collagen preparation that can be absorbed by the skin directly is even more absurd. When skin care products containing collagen are applied, collagen can only be "transported" to the epidermis of the skin and cannot enter the dermis. As a result, collagen molecules are blocked from the skin and the skin structure cannot be improved. & gt& gt Click on the Internet to make an appointment, and you can get more gifts or discounts! & lt& lt？ Some people think that collagen can reach the dermis by injection. An expert in plastic surgery at Nanjing Huamei Medical Beauty Hospital said that collagen injection only has a "validity period" of three months. Although this method can temporarily eliminate annoying wrinkles and improve the relaxed facial contour, collagen will be absorbed and metabolized under the natural physiological conditions of human body, so it should be injected again every three months on average. The advantages of high efficiency, safety and painless are highly praised by beauty seekers. Nanjing Huamei Beauty Hospital was established with the approval of the Ministry of Health. Its technical strength and expert qualification are configured according to China's third-class and international first-class standards, and it provides professional specialized medical services with a five-star club management system. For a long time, it has been highly praised by beauty seekers for its advantages of high efficiency, safety and painless. Because of its expensive equipment and harsh cooperation conditions, only large-scale first-class professional medical beauty hospitals are qualified to cooperate as beauty hospitals. Do you understand this problem? Collagen has a wide range of applications and will also bring a lot of convenience to friends. It must give you a very comprehensive reference. I hope these introductions can help my friends.