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Is American Peptides legit? What we could verify and what we could not

Comparisons · 5 min read · Published

A sealed plain cardboard shipping carton on a steel receiving bench in a quiet laboratory, with a blank clipboard beside it.
AI-generated illustration. It does not show any vendor, product or facility.

Disclosure: Peptide Trace is an affiliate partner of American Peptides and earns a commission when you buy through the link at the end of this page. Sold for laboratory research only, not for human or veterinary use. #ResearchUseOnly

Readers ask whether American Peptides is legit. A website review cannot answer that, so we did not try. We read the company's own pages on 28 October 2026 and set down what it says about itself, its testing and its terms, with what we could and could not check. Our American Peptides review scores its paperwork and our certificate post reads four certificates in full. This page covers the rest.

Who runs American Peptides

The site names no company and no person. Its footer gives the name "American Peptides", a street address (9742 St. Vincent Ave, Shreveport, LA 71106), a phone number and a support email, and its About page gives no legal entity, founder, founding date, manufacturer or lab partner . Its structured data lists weekday hours from 8:00 to 17:00.

A web search turned up no state registration for that address. We did not search the Louisiana Secretary of State's business database, where a registered entity would appear. Until you find one, the paper trail is the site's own statements.

What the site says about testing, and what we found

Swipe the table sideways to see every column.

Vendor pages read 28 October 2026, certificates read 8 October 2026. Prices, stock and lists change.
What the site saysWhat we found
Every lot ships with a lot-matched certificate you can match to the number on your vial.The site has a lot-number lookup at /verify. It searches a published list of 126 entries covering 111 distinct certificates and returns the document for the number you type. That helps only if your vial's number is on the list. We have not received a vial.
Every batch is independently third-party tested.The certificate library covers 51 of the 76 research listings. Twelve non-bundle listings have no entry: the amylin analogue AP-AMR1, eight liquid sprays, two dissolving strips and the reconstitution solution.
Testing has seven layers, including sterility.The four certificates we read on 8 October show identity, purity, content, endotoxin and heavy-metal results. None shows a sterility result.
Results are verified by Bioviridian.The four certificates we read name Bioviridian. The library page names no lab. The lab's own verification page refused our request, and we have not contacted it.

The lookup list is where the older certificates went. By date-style suffix, 58 entries end in 0803, 25 in 0528, 24 in 0318, 15 in 0616 and 2 each in 0713 and 0401 .

Lot entries in the vendor's lookup, by lot suffix
  • Suffix 080358lot entries
  • Suffix 052825lot entries
  • Suffix 031824lot entries
  • Suffix 061615lot entries
  • Suffix 07132lot entries
  • Suffix 04012lot entries

Counted from the list the vendor's /verify page publishes, 126 entries, read 28 October 2026. We did not interpret what each suffix means.

What its policies say

The shipping and return policy takes effect from 8 March 2026 . These are its main terms.

  • Orders ship within the United States only and are typically processed within 24 to 48 business hours of payment.
  • Damaged or wrong items must be reported within 72 hours of delivery, with photos. A verified claim gets a free replacement.
  • All sales are final once a product leaves the facility. The policy offers no returns or refunds.
  • An order cannot be cancelled once a tracking number exists.
  • A package marked delivered but missing goes to the carrier first.
  • The site advertises free shipping over $300 and a response from support within one business day.

The site's same-day shipping claims do not match each other. The banner says orders by 2PM EST ship today, the FAQ says orders before 12pm CT typically ship the same business day, and the policy says 24 to 48 business hours. The policy has no cold-chain shipping statement, and its refund section says the company cannot verify storage conditions after a product leaves its facility.

Discount codes

Our partner code is PEPTIDE101116. We have not confirmed what it takes off, so check the total at checkout before you pay. On 8 October the site offered 20% off a first order, and we did not find that offer on 28 October. The site now advertises 20% off for military and first responders through a separate page, and 10% or more off bundles . The partner program says partners can share a link or coupon code and states no customer discount for one.

How we are paid

American Peptides pays partners 10% to start, rising to 35% with monthly sales, with a 30-day cookie . The commission does not change our score. American Peptides scores 5 of 6, second of the four vendors we review, and the comparison shows every check.

What changed since our 8 October read

  • The vendor renamed its GLP-1 and related listings to code names such as AP-RTA-3. The old product addresses redirect to the new ones with the same prices and CAS numbers, and our product list uses the new names.
  • The library page no longer labels older certificates as superseded, and a lot-number lookup now carries them.
  • We did not find the first-order discount.

Our guides on spotting a fake COA and reading a certificate of analysis explain what to check on any vendor's report.

Frequently asked questions

Is American Peptides legit?

We cannot say. It publishes certificates that name a lab, a lot-number lookup and written policies, but it names no company or person, and we have not bought a vial or checked a certificate with the lab. Check what you can, then decide.

Where is American Peptides based?

The site gives 9742 St. Vincent Ave, Shreveport, LA 71106, and says orders ship from Louisiana. We did not verify the address independently.

Does American Peptides give refunds?

Its policy offers no returns or refunds once an order leaves its facility. Damaged or wrong items reported within 72 hours of delivery, with photos, are replaced at no cost. The policy took effect on 8 March 2026.

Does American Peptides have a discount code?

Our partner code is PEPTIDE101116, and we have not confirmed what it takes off. The site advertises 20% off for military and first responders. Check the total at checkout.

Vendor details are the vendors' own statements, read on the dates given. We have not tested any product. This post is educational and is not medical advice. Research peptides are sold for laboratory research only.