As unregulated peptides grow in popularity, doctors warn of unknown risks ABC7 San Francisco What are peptides? The treatments promising weight loss and better skin, explained Vox 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 in the Limelight: US FDA May Ease Restrictions on Several Peptides The Dermatology Digest FDA takes first step in possible reversal of ban on some peptides The Washington Post