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How to Vet a Peptide Supplier: 12 Questions Every Clinic Should Ask
Published June 8, 2026 · 8 min read
The single biggest risk in launching a peptide program is picking the wrong supplier. Use this checklist before signing anything.
Pharmacy licensure
Confirm the pharmacy is a licensed 503A or FDA-registered 503B. Ask for the active license number and the state board it reports to. Anything else is a research-chemical vendor wearing a lab coat.
Certificates of analysis
Every batch should ship with an independent third-party COA: potency, sterility, endotoxin, and identity. If COAs come from the same lab that compounds the product, that is a conflict of interest.
Formulary depth
A real supplier covers GLP-1s, recovery peptides, growth secretagogues, sexual wellness, and BHRT. If they only sell one molecule, they are reselling someone else's inventory.
Compliance posture
Ask how they handle multi-state prescribing, telehealth, and patient-specific orders. The answer should be specific, not theoretical.
Patient experience
Branded packaging, COA verification page, patient-friendly inserts, refill workflow. If the patient receives an unbranded vial in a baggie, you have a churn problem.
Pricing transparency
A line sheet you can budget against, with volume tiers. No phantom 'call us' pricing.
FAQs
- How do I confirm a 503B is FDA-registered?
- Ask for their registration number and verify it on the FDA's public 503B outsourcing facility registry.
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