Some unapproved peptides are advertised online with claims that they help with muscle growth and joint repair but clinical evidence is weak.
Keystone / Gaetan Bally
Peptides, a class of drugs made of short chains of amino acids, are in growing demand for everything from weight loss and muscle aches to longevity and rare cancers. This is good news for Switzerland, which is home to some of the largest peptide manufacturers in the world.
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