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, FDA moves toward easing restrictions on certain peptides BioPharma Dive Peptides in the Limelight: US FDA May Ease Restrictions on Several Peptides The Dermatology Digest 'Magical' or dangerous? Health Canada warns against unauthorized peptides