Gelatin is a substance extracted from fish skin, fish scales and fish bones. Widely used in food, medicine, cosmetics and other fields. The following are some common types, functions and functions of gelatin:

1. shark bone glue: rich in collagen and minerals, it can promote bone growth, protect joints and moisturize skin.

2. Sturgeon scale glue: rich in collagen and vitamins, it can promote skin elasticity and luster, and also has certain curative effect on wounds that are difficult to heal.

3. Fish skin collagen: it is a kind of high-purity collagen extracted from deep-sea fish skin, which has the effects of moistening skin, relieving skin aging, whitening and removing spots, and enhancing immunity.

4. Gelatin crude protein: rich in protein and amino acids, it can promote muscle growth, increase physical strength and endurance, and is an ideal nutritional supplement for athletes and fitness enthusiasts.

Generally speaking, fish glue has many functions, such as moisturizing, beauty, fitness, calcium supplementation and so on. This is a very valuable marine resource.