Peptides are a HUGE category. Were talking about everything from insulin to GLP 1s Some are incredibly well researched and FDA approved., But in the injury recovery world? Thats where it gets a Americans are injecting themselves with unproven peptides 6abc Philadelphia BPC 157 Peptide Erectile Dysfunction: Exploring the Research and Real World Use The peptide problem: Hype is outrunning the evidence BPC 157: Experimental Peptide Creates Risk for Athletes