In this FAQ video, Dr. David Greene explains the rigorous testing procedures used to ensure the safety and purity of stem cell biologics. Learn how stem cells are screened for bacterial contamination, viruses, and other potential pathogens before being approved for clinical use. Understand the importance of third-party lab testing and strict quality control protocols in protecting patient health. Whether you're considering regenerative treatments or simply curious about the science, this video provides essential insights into stem cell safety standards.