At high-end longevity clinics around the globe, doctors say interest in injectable peptides is climbing, and so are injuries linked to them. Getty Images

Peptides are getting the DIY treatment. Doctors are concerned.

Business Insider spoke with seven longevity-focused doctors, who shared the worst-case scenarios they've seen after patients took peptides.

At high-end longevity clinics around the globe, doctors say interest in injectable peptides is climbing, and so are injuries linked to them. Getty Images

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2026-04-25T09:25:01.309Z

A man with a mysterious case of full-body hives in Abu Dhabi. A Californian rushed to the hospital with a life-threatening allergic reaction.…