Collagen can be extracted from foods rich in far-protein, and there are many foods containing far-protein in our lives, such as tremella tremella, tendons, tendons, pig feet, and so on. The methods of extracting collagen are generally hydrolysis and enzymatic hydrolysis of collagen, and the resulting collagen powder is white. When brewing collagen powder with water, if you use a glass, you will find that the solution is very clear.

Collagen is a biopolymer, is the main component of animal tissues, is also a rich and widely distributed functional protein in mammals, accounting for 25% to 30% of the total protein, and even up to 80% in some organisms.

Due to the differences in amino acid composition and cross-linking degree, aquatic animals, especially the rich collagen contained in their processing waste - skin, bone and scale, have many advantages that the collagen of domestic animals does not have. In addition, the collagen of Marine animals is significantly superior to that of terrestrial animals in terms of low antigenicity and hypoallergenicity. Therefore, collagen in aquatic products may gradually replace collagen in land animals.

After collagen is absorbed by the skin, the skin's water retention ability is enhanced, and the water and oil balance in the skin can be maintained at all times to avoid strong oil secretion, long-term blockage, and enlarged pores.

Because of its good biocompatibility, biodegradability and bioactivity, collagen has been widely used in food, medicine, tissue engineering, cosmetics and other fields.