The Peptide Craze: Americans Inject Unregulated Chemicals for Health
A growing number of Americans are self-injecting unregulated peptides—short chains of amino acids—purchased largely from Chinese labs on the gray market, seeking benefits like thicker hair, muscle mass, and improved focus. The trend, endorsed by celebrities and tech CEOs, has created a $1-3 billion market, with imports of Chinese peptide compounds doubling to $328 million in the first nine months of 2025. While some peptides like insulin and GLP-1 drugs (e.g., Ozempic) are FDA-approved, most are sold 'for research purposes only' and lack rigorous safety testing. Doctors warn of unknown long-term effects, including potential cancer risks: a University of Utah study found BPC-157 may promote tumor growth, and TB-500 accelerated tumors in lab animals. Users have reported side effects such as hair loss, blurred vision, and hospitalizations. Health Secretary Robert F. Kennedy Jr. has expressed interest in easing access to these substances.
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