Case report links unregulated tanning peptide Melanotan-II to new melanoma
A man who injected Melanotan-II, a gym-sold peptide marketed for skin tanning, developed a new melanoma, according to a reported case. The substance, nicknamed the 'Barbie drug,' is not approved for medical use and has previously been associated with serious health complications.
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The case adds to growing concern among physicians that unregulated peptides sold outside medical supervision can carry serious cancer risks, not just cosmetic side effects. It may prompt renewed calls for stricter oversight of gym and online sales of substances like Melanotan-II, though the full scope of risk across users remains unclear from a single case.
- Melanotan-II is an unregulated peptide used off-label for tanning effects.
- A reported case links its injection to the development of a new melanoma.
- The substance has previously been tied to other serious health complications.
Source: gizmodo.com, 2026-10-08
Published there as: “Man Injects Gym-Bought Tanning Peptide, Gets a New Melanoma”
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