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, of the Federal Food, Drug, and Cosmetic Act (FDCA).* Have you thought about taking peptides that aren't approved by the FDA? Think again. CBS News' chief medical correspondent, @drlapook, shares a cautionary tale from medical history about why testing medications is Peptides Lack Reliable Safety Information, Watchdog Warns A closer look at the unapproved peptide injections promoted by influencers and celebrities king5.com