Are Peptides Safe? The Clinical Reality, Are peptides safe? The answer starts with clinical medicine: most are not FDA approved and are often sold as research chemicals, with real quality, purity, The U.S. Food and Drug Administration is moving toward allowing compounding pharmacies to produce more than a dozen injectable peptides that were banned because of potentially significant safety risks, the New York Q&A: Should you trust trending peptide injections? What Are Injectable Peptides? Here's Why Doctors Are Worried About the Latest TikTok Wellness Fad. WSJ