Some people's noses are not very flat, mainly because the nasal bones are not fully developed, which mainly depends on genes. Therefore, many people choose prosthesis for nose plastic surgery because it can replace the original nasal bone and support the flesh of the nose.
If you don't want plastic surgery, but the roots of the mountain lack support, you can consider injecting uric acid. Compared with plastic surgery, medical beauty has less risk, smaller opening and faster recovery. Hyaluronic acid is also a common tissue in the human body and will not be rejected by the human body. However, hyaluronic acid also has its disadvantages. For example, it is time-sensitive and will decompose itself after about 1 year. At this time, hyaluronic acid needs to be supplemented. Hyaluronic acid requires high injection technology, which is basically injected into dermis, avoiding blood vessels and nerves, and the quality of hyaluronic acid also needs to be firmly controlled.
I hope my answer can help you.