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The real sourcing question for clinical peptide therapy in 2026 is not compounded or online. It is which peptides can a compounding pharmacy legally prepare today, and which can only come from a research-grade laboratory? The answer surprises most patients

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Mounjaro has been approved recently for both obesity and diabetes, with access initially limited to specialist clinics

Many peptides are not approved by regulators, and their safety, purity, and interactions are not well established

Dihexa is metabolised primarily by CYP3A4 enzymes, which oxidise the compound into inactive metabolites, and by UDP-glucuronosyltransferases, which conjugate it with glucuronic acid for renal excretion

Together, PDA describes this 15-amino-acid complex in its arginine salt form, the same core compound most people know as BPC-157