Endotoxin
A bacterial cell-wall fragment that can contaminate injectables — tested for in every batch of a compounded peptide.
Definition
Endotoxins are lipopolysaccharide fragments shed from Gram-negative bacteria. Injected into a patient, even trace amounts trigger fever and inflammation. Every batch of peptide compounded at a 503A pharmacy is tested for endotoxins (via LAL assay) alongside identity, potency and microbial load — 'research-grade' peptides purchased without a prescription are not.
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Compounded Peptide
A peptide prepared for an individual patient by a licensed compounding pharmacy, prescribed by a clinician and tested for identity, potency and contamination.
Pharmacy & Regulation503A Pharmacy
A US compounding pharmacy that prepares medications for individual patients based on a specific prescription.
SafetyResearch Chemical
Unregulated peptides sold online labelled 'not for human use' — not a legitimate prescription pathway and not tested for patient safety.
$149 panel.
A clinician reads it in 24 hours.
Order the Peptide Readiness Panel, draw at a Quest or LabCorp near you, and your clinician sends back a matched protocol with a confidence score.