People are turning themselves into lab rats': the injectable peptides craze sweeping the US Well actually The Guardian Retatrutide: Fat Loss, Liver Health & Muscle Care BPC 157 is one of the peptides that has been getting a lot of attention recently. It is a synthetic peptide derived from a protein found in human gastric juice. In experimental research, BPC 157 Benefits: Heal & Thrive in 2025 Six years ago, Dr. Michael Peluso and his team at the University of California, San Francisco launched a first of its kind long COVID tissue bank. For MH's Health Care Heroes series, we chatted with