Grey Axis Research is a US research-peptide vendor based in Fort Worth, TX that lists 5 injectable peptides, including Retatrutide. Across 4 products with a market median, its prices sit 45% below the median for the same peptide and vial size; it is the cheapest vendor we track on Retatrutide. We found no certificates for the in-stock products we track. Based on the certificates our crawler found; vendors may publish more than we index. Shipping is $13.50, free over $200 and quoted at 2–5 days; it accepts card, Zelle, ACH and crypto.
Facts extracted from the vendor’s site and not yet reviewed by us.
COA coverage: None found
We found no certificates for the in-stock products we track. Based on the certificates our crawler found; vendors may publish more than we index.
from 1 indexed document
current certificates, by the date printed on them
Analytical Formulations, Inc. signs the most of them
oldest Apr 24, 2026
The site names Janoshik Analytical as its testing lab. These are the vendor’s own flags, not our measurements.
Grey Axis Research states every batch is "synthesized, lyophilized, and analyzed, meeting a 99%+ purity threshold verified by analytical testing," with independent third-party labs (including Janoshik Analytical) verifying identity and purity via HPLC/UPLC; it does not perform testing in-house and sources compounds from external manufacturers rather than manufacturing them itself.
$2.90/mg median
▲ 45%
Median price per mg across Grey Axis Research’s 1-51 priced listings, from Jul 25 ($2/mg) to Oct 22 ($2.90/mg) over 77 observed days. The mix of products behind the median changes as listings come and go, so this tracks the catalog as well as the prices.
6 of Grey Axis Research’s tracked listings changed price in the last 30 days: 5 down, 1 up.
International
45% below
vs market median
47
peptides
None found
in-stock products
Oct 22
International
19% above
vs market median
71
peptides
Broad
in-stock products
Oct 22
International
3% above
vs market median
52
peptides
Partial
in-stock products
Oct 22
International
2% above
vs market median
24
peptides
Broad
in-stock products
Oct 22
Grey Axis Research sits 45% below market the tracked market median on matched peptide/size rows. The catalog in this index is smaller than Umbrella Labs's. On COA coverage, Grey Axis Research rates none found and Umbrella Labs rates broad. Based on the certificates our crawler found; vendors may publish more than we index.
The honest comparison unit is price per mg on matched peptide/size rows. COA coverage is presence of a current indexed document, not purity-as-quality. See the Evidence Atlas and how to read a COA.
Evidence boundary: Listed prices, stock signals, and indexed COA documents are observations. They do not establish legitimacy, authenticity, safety, sterility, chain of custody, product quality, fulfillment, or suitability. No vendor is endorsed.
Pricing data cannot settle that question, and we do not test products or verify fulfillment. Here is the evidence we do hold for Grey Axis Research. We found no certificates for the in-stock products we track. Based on the certificates our crawler found; vendors may publish more than we index. We have been recording their prices since July 3, 2026. Read each certificate yourself, check that its lot and compound match what you are buying, and treat anything we have not recorded as unknown rather than as an answer.
We found no certificates for the in-stock products we track. Based on the certificates our crawler found; vendors may publish more than we index. Their own testing page is at https://gxresearch.shop/certificate-of-analysis/. A certificate on file records what a document says; it cannot prove chain of custody or what is in the vial you receive.
Grey Axis Research states that orders ship from Fort Worth, TX, US. They state that they do not ship internationally. This is what the vendor says about itself, not something we have verified.
Grey Axis Research lists shipping at $13.5. Orders over $200 are listed as shipping free. Stated delivery is 2–5 days. Their shipping page is at https://gxresearch.shop/shipping-policy/. Checkout is the only place these figures are binding.
At the time we recorded it, Grey Axis Research listed credit or debit card, Zelle, ACH bank transfer and cryptocurrency. Peptide storefronts change processors often, so the options at checkout may differ from what we hold.
We have none on record for Grey Axis Research. When a code we can verify appears, it shows on this page and the prices here are adjusted for it; until then, every figure on this page is the list price.
Across 4 graded products, Grey Axis Research's median price per mg sits 44.9% below the median for the same peptide at the same vial size. We track 47 products from them in total. Price per mg is the comparison unit: a cheaper vial holding less is not a cheaper product.
Product documentation
Across the tracked peptide products we hold for Grey Axis Research, COA coverage rates limited. The public index contains 1 document. Reported test dates in this set run from Apr 24, 2026 through Apr 24, 2026. That rating covers the full tracked catalogue for Grey Axis Research, including products that are currently out of stock, so it can differ from the in-stock rating above. Based on the certificates our crawler found; vendors may publish more than we index.
across the full tracked catalogue
current certificates, by the printed test date.
Printed date is over 18 months old.
Named on more current records than any other lab.
Certificate assessment
1 evaluated certificates
1 graded · 0 not graded · 0 in the A range.
The sample prioritizes up to ten popular peptides from this vendor. Grades assess the document and its reported tests, not the vendor’s whole catalog or the safety of a product.
Automated checks can make mistakes. Open “Why this result?” for the reason and any review notice, and check the linked COA’s lot against your product. How grading works
1 evaluated record
Document grade
X2: The certificate's identity evidence (Qualitative ID - Lambda Max) can't confirm the peptide on its own; that needs mass spectrometry or a side-by-side match to a reference standard.
Document check: fail.
Lab record: not confirmed.
Graded Oct 14, 2026 · Grader 0.4.9 · Policy 2026-10-07.2
GX-PT10-H1426
| COA grade | Printed lab | Certificate | |||
|---|---|---|---|---|---|
| PT-141 Lot: GX-PT10-H1426 | Document grade Why this result?X2: The certificate's identity evidence (Qualitative ID - Lambda Max) can't confirm the peptide on its own; that needs mass spectrometry or a side-by-side match to a reference standard. Document check: fail. Lab record: not confirmed. Graded Oct 14, 2026 · Grader 0.4.9 · Policy 2026-10-07.2 | Analytical Formulations, Inc. | Apr 24, 2026 | 99.7%99.5%+ | View COA |
1 current record
GX-PT10-H1426
A record appears on file after our pipeline identifies the document as a certificate of analysis and matches its printed compound to a catalog peptide. The record cannot prove authenticity, chain of custody, sterility, product safety, or suitability for use.
These are counts of documents in our index, and a coverage rating of what our crawler found. They do not grade vendor quality, legitimacy, or safety. Printed fields can contain transcription errors. “Older record” means the reported test date is more than 18 months old.
See the testing methodology and dataset, or compare this coverage against another vendor in the vendor comparison tool.
The Peptide App. Grey Axis Research peptide prices, COA coverage and vendor facts. Updated October 22, 2026. https://www.thepeptide.app/pricing/vendor/grey-axis-research
The Peptide App. (2026). Grey Axis Research peptide prices, COA coverage and vendor facts. Retrieved from https://www.thepeptide.app/pricing/vendor/grey-axis-research
Prices and certificate counts on this page were last refreshed October 22, 2026.
