Collagen has many functions, but it is not omnipotent. To sum up: the greatest function is beauty. Eating collagen can increase the content of collagen fiber in the skin, make the skin full and elastic, and because collagen has a very strong binding ability with water, the skin will be moisturized because of more collagen. Now collagen oral liquid will generally add some other ingredients, such as fancl adding soybean isoflavones, which can play a role similar to estrogen and can play a role in breast enhancement. There are VC, VB and pomegranate juice in Baijinmeijiao tripeptide, which can resist oxidation, remove melanin and make skin white and tender. Some collagen oral liquids will add pectin or other plant fibers, which can be used to relieve constipation. People with constipation will feel particularly good after eating it. Some merchants boast that collagen is fantastic, as if any problem can be solved, and they can't wait to say that they can live to be 200 years old after eating collagen. They are absolutely fools. After the age of 25, the content of collagen in human skin will decrease, and after the age of 30, it will decrease significantly, so there will be more wrinkles. Taking collagen can make people look younger. In ancient times, people used to eat beauty foods such as Ejiao and bird's nest. The main component is collagen. Now you can eat collagen powder or collagen oral liquid. Fangke, Platinum Meijiao and H2O all have good cosmetic effects.