Here is an FTC order from 2023 that bans bogus claims that the active ingredient in Ostinol, which is Cyplexinol, could grow bone and cartilage, and relieve joint pain.
https://www.ftc.gov/news-events/news/press-releases/2023/02/ftc-order-bar-zycal-bioceuticals-deceptive-health-marketing
It looks like ostinol and its active ingredient cyplexinol have not been found to be effective in clinical trials.