In recent years, the popularity of “collagen” continues to rise among beauty-conscious women, and many “collagen drinks”, “collagen powder”, “skin care products containing collagen”, “collagen injections” and other products have appeared on the market. “Skin care products containing collagen”, “collagen needle” and so on, so what are the pros and cons of consuming, applying, injecting collagen? Eating collagen is not the same as supplementing collagen! Collagen is one of the common proteins in the daily diet of human beings, crowded proteins by the gastrointestinal tract after digestion and absorption, in the form of raw materials (amino acids) are mainly used to build human proteins. Can eating collagen replenish human collagen? Ingested collagen and collagen in the human body may seem similar, but it is very different. Collagen in the body is synthesized by cells and has little to do with eating collagen. Collagen only exists in the human and animal body, all plants do not contain collagen, so any claim that “plant collagen” health products are naked deception. Collagen as a food additive. Has been extracted from animal skin, bones, tendons, food-grade “gelatin”, as a food additive in yogurt, ham, milk drinks and other foods; or provide industrial-grade gelatin (the famous “shoe extract”) for non-food industrial products. The main component of gelatin is collagen, or collagen and gelatin is “all the way goods”, much the same. There is no difference in essence between the two, only the extraction method and solubility is slightly different. So now even milk are added collagen? Add collagen (gelatin) milk suddenly woke up: collagen this goods is not wearing armor gelatin well! Since eating collagen is just a beautiful legend, then apply collagen and inject collagen? Can applying collagen on the surface of the skin reduce wrinkles? It starts with the surface structure of the skin. Human skin is actually very dense, with a strong “defense” of keratin and other proteins on its surface. Although there are some “gaps” for the inner organs of the skin (such as sweat glands and sebaceous glands, etc.) to breathe and secrete some substances, absorbing some small molecules, but any large molecules are not easy to be absorbed into the material, especially proteins such as larger molecules. Theoretically, applying collagen skin care products can only deliver collagen to the top layer of the skin and cannot enter the dermis. Not only that, repeated and excessive application of collagen may also trigger skin allergies, causing localized skin rashes, itching and other discomforts, as well as making the skin dependent on skin care products. Is collagen injection reliable? Of course, the delivery of collagen into the dermis is not without a solution. Currently, in regular medical aesthetic institutions, doctors can inject collagen to improve facial wrinkles or localized depressions. After collagen is injected, some of it will be absorbed by the body and the rest will act as a filler for the skin. In a period of time, the skin will look delicate and plump, but the price is expensive, and the maintenance time is short, and a few people will have allergic reactions, it is recommended to go to the more advanced hospitals to receive injections, the effect of cosmetic injections can only be maintained for about half a year, and need to be injected again in the future. To summarize the injection of collagen is still relatively reliable, just to do a good job of half a year to inject the heart of the preparation of yo ~!