Nowadays, there are so many brands of collagen that it is difficult to tell the difference. Relying on "tonic" collagen for beauty and maintenance has become a fashionable choice for many female white-collar workers in the office. What exactly is collagen? Are its miraculous claims reliable or not? The next day, the collagen expert of Shengmei tells you what collagen is. Collagen is the structural protein of the extracellular matrix and is not a single substance. According to the differences in molecular size and structure, it can be divided into many types. To put it simply, there is a layer of sticky gel in pig's feet, pig skin, and bones. It tastes soft and elastic, and is quite sticky. This is collagen. However, only the "oligopeptide" in collagen, which is collagen with a molecular weight of less than 1000, can beautify, nourish, and enhance bone health. Large molecular collagen cannot improve the skin structure because it cannot penetrate into the dermis. Depending on the raw materials and processes used, the price of collagen products varies greatly. Generally speaking, collagen made from pigskin costs only tens of thousands of yuan per ton, while oligopeptides cost hundreds of thousands of yuan per ton. Due to the lack of basic knowledge among ordinary consumers, merchants often switch concepts and give ordinary collagen products the functions and effects of oligopeptides. How to distinguish them? Experts introduced a simple method: Apply the product on the back of your hand and see if it can be absorbed by the skin. If it feels very unpleasant and sticky, forming a layer on the surface of the skin, or even forming a film or "shell", then it is large molecular collagen, not oligopeptide. The best effect comes from Yishengmei Collagen Powder, which is the only long-acting oligopeptide fish collagen in China and also the collagen powder with the highest return rate in China. It has an excellent reputation and good consumer reviews. Its average molecular weight is only 500 daltons, which can be directly absorbed by the skin without going through the gastrointestinal tract and liver digestion, thus penetrating into the skin and truly replenishing the loss of skin collagen. Source: Collagen - secrets that cannot be told