The document summarizes research on prolotherapy, which involves injections to repair soft tissues like ligaments and tendons. It discusses definitions of prolotherapy and focuses on dextrose prolotherapy. It provides evidence that prolotherapy is not experimental, as it is taught in postgraduate medical programs and supported by published studies. Several studies on specific conditions like Achilles tendinosis, knee osteoarthritis, and low back pain are summarized, demonstrating safety and efficacy of prolotherapy though some need further research.