A closer look at the unapproved peptide injections promoted by influencers and celebrities king5.com 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, BPC 157 Banned: Key Facts on the Latest FDA Decision Peptides are surging in popularity. There's little evidence that they work. 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