What effect does Zhao Mouming's cartilage joint peptide have on the knee?

I used this product at home at the beginning of this year and bought it in a good life. At that time, the elders had knee pain, and the examination showed meniscus injury, that is, cartilage wear. My friend introduced me to use it for two cycles, and now I have returned to my normal life, and the effect is still relatively good. Later, I looked it up on the Internet and it was developed by Professor Zhao Moming. Specially used for cartilage injury, many patents, more common in the elderly!