Supplier checklist • May 18, 2026
Peptide Supplier Checklist
Use this checklist to evaluate supplier transparency before comparing discounts, shipping speed, or social-media recommendations.
Save the COA and claim-checking prompts.
Get education-first checklists before you evaluate supplier pages or social claims.
Documentation checks
Find the exact product name, lot number, COA, testing date, lab identity, and method. If any of those are missing, write down the gap.
A supplier that makes documentation easy to match is easier to evaluate than one that relies on vague “tested” statements.
Claim-language checks
Scan for treatment, dosing, transformation, or guaranteed-result language. Research-use pages should keep claim boundaries clear.
Be especially careful when educational language is mixed with aggressive sales claims.
Business transparency checks
Look for contact information, policies, disclosures, labeling clarity, and affiliate transparency. None of these proves safety, but they help readers assess professionalism and accountability.
After the checklist, compare sources only as a due-diligence exercise — not as a recommendation to buy or use any compound.
Quick takeaways
1. Check documents before discounts
Check documents before discounts.
2. Match COAs to exact lots
Match COAs to exact lots.
3. Flag outcome-heavy claims
Flag outcome-heavy claims.
4. Use trusted-source pages as starting points, not guarantees
Use trusted-source pages as starting points, not guarantees.
Sources to start with
Get the free research kit.
COA prompts, supplier due-diligence notes, and article drops. No dosing, protocols, or medical advice.