How can I tell if the peptides I'm buying are real?

Research-grade peptides sold online have no requirement to test for purity, potency, or endotoxins. US regulators have specifically cited peptide-related impurities and active ingredient characterization as safety concerns for compounds like BPC-157 and TB-500. The only way to know if your vial is what it claims to be is a batch-matched Certificate of Analysis from an independent lab. Without it, purity, dose, and sterility are unknown.

• US regulators cited 'complexities with regard to peptide-related impurities and API characterization' as a formal safety concern across multiple peptides including BPC-157, TB-500, ipamorelin, and GHRP-2
• Research-grade peptides have no requirement to meet USP endotoxin or sterility standards for injectables
• Inter-laboratory variability in peptide purity measurement is documented even under controlled HPLC conditions - vendor self-reported purity claims require independent validation
• Unapproved versions of GLP-1 drugs have been documented to contain too little, too much, or no active ingredient at all

Your guided peptide companion.

PRTCL walks beginners through their first peptide with confidence - guided reconstitution, syringe unit math from your own numbers, vial tracking, and answers to questions like this one. Built for first-timers, useful for everyone.

• · Guided walkthrough for your first dose
• · Your vial and your dose, converted into syringe units
• · Vial inventory and dose log tracking
• · A library where every claim cites its source

Free to start.