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Testing reveals popular weight loss peptide had double the strength on label

ABC Australia · Jun 26, 2026, 6:41 PM · Also reported by 2 other sources

Key takeaways

  • The testing showed the vial had double the concentration of what was listed on the label.
  • Test results on an unapproved peptide have revealed double the concentration listed on the label, prompting warnings from health professionals about "enormous" overdose risks.
  • The vial of black-market weight-loss peptide retatrutide was provided to the ABC for testing.

Why this matters: an international story with cross-border implications worth tracking.

The testing showed the vial had double the concentration of what was listed on the label. (Supplied)

Test results on an unapproved peptide have revealed double the concentration listed on the label, prompting warnings from health professionals about "enormous" overdose risks.

The vial of black-market weight-loss peptide retatrutide was provided to the ABC for testing.

Article preview — originally published by ABC Australia. Full story at the source.
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