Good elasticity, easy shaping, good chemical inertia, non-toxic, non-carcinogenic, non-teratogenic, and good histocompatibility. After implantation in the body, there will be mild inflammatory reaction in the local area, which will gradually subside in the later stage. It is one of the most widely used and effective materials in plastic surgery of nasal columella at present.

2. Nasal septal cartilage

Nasal septal cartilage is a plate-like cartilage that separates two nasal cavities. It is a strategy of "killing three birds with one arrow" to keep a part in front of and above the nasal passage and remove the lower part at the back, which can not only maintain the integrity of the nasal shape, but also obtain the required materials. Moreover, the cartilage of nasal septum is located in the same incision as nasal plastic surgery, and no reoperation is needed. Nasal septal cartilage can prolong or elevate the columella without rejection.