A growing number of individuals are self-injecting unregulated peptides, often obtained through a "grey market" primarily supplied by China. These substances, sold with explicit warnings like "for research purposes only," are being used for perceived benefits in skin health, muscle growth, and recovery, despite a lack of human trials and regulatory approval.
While some peptides, like insulin and licensed GLP-1 weight-loss drugs, are medically approved, a surge in interest has led to the proliferation of unapproved compounds. Experts warn that users are essentially becoming "lab rats," risking severe side effects including fever, septic shock, and chronic conditions due to potential contamination with bacterial endotoxins and the absence of quality control.
Some clinics are offering these therapies, citing a "golden era" for peptides, but acknowledge the lack of human trials and licensing is due to the difficulty and cost of patenting naturally occurring substances. Regulatory bodies are actively working to remove such products from the market, strongly advising against the use of unauthorized medicinal products, especially those promoted on social media.