American Peptides reviews
American Peptides reviews: 1 independent lab tests across 1 product, with a limited lab record.
Written by the Peptide Vendor Reviews editorial team
Is American Peptides legit? Lab record: Limited
How we rate- 1 independent test
- 1 of 1 lots filled to label
- Median purity 99.9%
- Its tested product graded C or better
Opens the vendor's site. We don't earn from this link, and no one pays to rank.
Vendor website
Visit American Peptides
1 independent COAs · not paid-to-rank · 0 of 1 lots under label
Visit American PeptidesOpens the vendor site. No partner discount on this shop.
Peptide Vendor Reviews independently tests products and verifies reviews. Public methodology, no pay-to-rank.
American Peptides products we've tested
Best-graded first. Grades come from the share of each product's samples that passed purity and quantity checks. Buy links open American Peptides' site.
- RetatrutideAGREAT
- Tests
- 1
- Passed
- 100.0%
What the testing shows
Across 1 measured sample from American Peptides, 0 came in more than 5% under the quantity on the label (0%). Purity across 1 reading ran from 99.9% to 99.9%, median 99.9%. Samples span Sep 2026 to Sep 2026.
- Under label
- 0/1
- Median purity
- 99.9%
- Latest sample
- Sep 2026
more than 5% short
99.9%–99.9% range
first tested Sep 2026
Our read on American Peptides
1 of American Peptides' 1 graded samples passed (100%), and 100% of all samples were sent in by buyers rather than by the shop.
Lab testing results
Independent results across 1 product.
Individual lab tests
Date
9/30/2026
Purity
99.9%
Quantity
10 mg → 9.99 mg
Lab
Harrens Lab
Vial
Red label / Silver crimp / White cap
| Product | Date | Score | Purity | Quantity | Lab | COA |
|---|---|---|---|---|---|---|
| RetatrutideRed label / Silver crimp / White cap | 9/30/2026 | 10.0 | 99.9% | 10 mg → 9.99 mg | Harrens Lab | View |
Which American Peptides products tested best
Retatrutide has the strongest record, graded A or B.
Buying from American Peptides
If you order from American Peptides, start with the graded products in the table: each one links straight to the shop.
We don't track American Peptides' prices yet. Shipping, payment and refund terms are on their site.
The official store is www.americanpeptides.us. Check the address before you pay.
What to check before you pay
- The lot number on the vial matches the certificate
- The certificate names the lab and the test date
- Fill versus label, not purity alone
- A refund policy in writing
Track American Peptides
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American Peptides: common questions
Is American Peptides legit?
We rate lab records, not businesses. Limited lab record: 1 independent test, 1 of 1 lots filled to label, median purity 99.9%, its tested product graded C or better. Each result links to its original certificate in the table above.
What do American Peptides reviews say?
We don't hold scored customer reviews for American Peptides yet. The independent lab results on this page are the evidence we have.
Which American Peptides peptides tested best?
We have graded 1 American Peptides product. Retatrutide graded A or B.
Is there a American Peptides coupon code?
We don't have a verified American Peptides coupon code. A discount changes the price, not what is in the vial.
Ordering from American Peptides?
Limited lab record: 1 independent test, 1 of 1 lots filled to label, median purity 99.9%, its tested product graded C or better.