Peptide Vendors
Peptide vendors range from documented laboratories to anonymous resellers. Four vetting questions separate the two groups in under five minutes.
Ask them of us first. Every answer is published on this site.
SEE OUR DOCUMENTATIONThe four vetting questions
Who synthesizes your compounds?
A vendor who cannot name their manufacturer is a middleman with no quality control.
Which lab tests your lots?
Follow-up: are the COAs batch-specific? Vendors who hedge here are telling you something.
What happens if testing fails?
A real answer involves money changing hands. Ours pays 200% of the product cost.
Where do you ship from?
Domestic fulfillment means no customs exposure and delivery measured in days.
Red flags that end the conversation
- Human-use claims on research compounds
- No lot numbers anywhere on the site
- Stock photography instead of real facility photos
- Prices dramatically below every competitor
- Payment methods that leave no recourse
Next: peptide companies or peptides for sale.
Frequently asked questions
What is the difference between a vendor and a supplier?
In practice, little. Both should meet the same standard: named testing, batch COAs, and a written guarantee.
How do I spot a fake peptide vendor?
Fake vendors share patterns: no lot numbers, no named lab, human-use claims, and prices too low to fund real testing.
Why do peptide vendors close and reopen?
Low-barrier entry lets weak operators cycle through domains. Vendors with documented quality have no reason to disappear.
FOR RESEARCH USE ONLY
All products are supplied strictly for in-vitro laboratory research by qualified professionals. Not for human or veterinary use. These products have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease.