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From mice to 'gym rats': Unregulated use of peptides raises alarm among researchers

6 August 2026 at 13:00

Driven by social media hype and a growing distrust of public health guidance, consumer demand for experimental peptides has exploded over the last decade.

Β© Christina House/Los Angeles Times

LOS ANGELES, CA - July 30, 2026: Pinchas Cohen, MD, Dean of the USC Leonard Davis School of Gerontology, is photographed at the University of Southern California in Los Angeles on Thursday, July 30, 2026. (Christina House / Los Angeles Times)
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