There are different types of collagen, so far has found dozens of species. Which Ⅰ, Ⅲ type is mainly present in the skin blood vessels and other connective tissue; Ⅱ type is mainly produced by chondrocytes, and more present in the bones, joints, tendons and other tissues; collagen type Ⅱ is the beauty industry has sought the magical beauty ingredients, wantonly under the skin to promote their cosmetic results, very few people know the important role of collagen type Ⅱ in other areas on the body. In fact, collagen type Ⅱ widely present in various parts of the body, of course, the highest content of the skin, accounting for 40 percent of the body's total collagen type Ⅱ, bone and cartilage accounted for 20%, accounting for 8% of the blood vessels, and the rest are located in skin, bone, cartilage, blood vessels, eyes, tendons and other parts.
Collagen is a protein polymer type Ⅱ filamentous collagen and elastin fibers and proteoglycans are intertwined to form a network structure, resulting in a certain mechanical strength, is supporting the body curve, reflecting the material basis upright posture and healthy skin . Collagen type Ⅱ apply to: stiff bones, joints inflexible, who need to increase bone toughness; the need to increase the transparency of those eyes; skin laxity, wrinkles and more persons; pigmentation, large pores were; dry skin, yellowish person; brown hair, brittle, brittle nails are. The main component of normal articular cartilage to water up (70 to 80%), followed by a second type collagen (10-15%) and glycoproteins (10-15% Cartilage is due to the second type of collagen and glycoproteins regular arrangement of closely linked together, combined with moisture so that it has to bear considerable pressure compression. For bone joints, the second type of collagen plays a very important role; type II collagen content is not high, so the extraction and purification has considerable technical requirements, difficult to obtain, so the cost is very high.