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Bottom line: Dihexa remains an investigational peptide, with no legal medical access and no oversight on purity, dosing, or safety

Drug Reporting : The drug or substance being administered must be billed with the appropriate HCPCS or CPT code

These medications work by mimicking the action of the naturally occurring GLP-1 hormone, which is released from the intestine in response to food intake

Real needle-free GLP-1 exists: the Wegovy oral tablet (oral semaglutide 25 mg, FDA-approved December 2025, 13.6% weight loss in the OASIS 4 trial) and experimental microneedle patches from Daewoong Therapeutics (80% bioavailability in a 70-person Phase 1 study, 2028-2030 market estimate)

Inhibition of goblet cell-specific PIEZO1 in mouse models results in thinning of the intestinal mucus layer, increased production of inflammatory cytokines (such as CXCL1, CXCL2, and IL-6), and an increase in the number of pathogenic bacteria in the intestine

Second, the microneedle delivery data are in vitro on excised human skin