Somebody sends you a PDF and calls it a COA. There’s a logo across the top, a chromatogram in the middle, a number ending in something like 99.4%, and a signature block at the bottom. It looks exactly like reports you’ve seen from labs you trust, and from the document alone you have no way of telling whether it describes the CJC-1295 no DAC you’re about to order, an unrelated batch from last winter, or nothing that ever existed.
That’s a genuinely hard problem and I don’t think it reflects badly on you for finding it hard. Certificate templates are downloadable. Chromatogram images crop and paste. The phrase “third-party tested” appears on almost every listing in this category, attached to setups that range from a browsable per-lot archive down to a badge graphic that isn’t even a link. And the quietest failure mode isn’t forgery at all, it’s a real report from a real lab describing material from a lot you will never receive.
There’s a second wrinkle specific to this compound. CJC-1295 no DAC, CJC-1295 with DAC and sermorelin are close relatives, and a purity number by itself won’t separate them. A chromatogram showing one clean peak tells you the sample was mostly one substance. It doesn’t tell you which substance. So the identity line on the report carries more weight here than it does for most peptides, and it’s the line most often missing. Below I walk through what a certificate for this compound should contain, then record what four named vendors publicly showed about certificate access on their own pages as reviewed 2026-09-08, and set that against how Blank Peptides documents its own lots.
Key takeaways
- A CJC-1295 no DAC certificate is only useful if you can open it before paying and it names the issuing lab, carries a lot number, states the method, and reports identity and contamination alongside purity.
- Blank Peptides publishes a certificate for every lot at its /coas/ library, covering identity, >99% purity, bacterial endotoxin and sterility, run by Freedom Diagnostics and Horizon Analytical.
- Of the four vendors reviewed, Limitless Life Nootropics states lot-numbered certificates covering purity, endotoxin and sterility, Swiss Chems states a dated HPLC report reachable from the product page, Biotech Peptides displays certificate images on the page, and Core Peptides states a certificate link beside a >99% purity specification.
- None of the four pages reviewed on 2026-09-08 named the laboratory that ran the analysis within the page text itself.
- Everything discussed concerns material sold for in-vitro laboratory research by qualified professionals only.
What should a CJC-1295 no DAC certificate of analysis actually contain?
Let me set the bar before naming anyone, because the word COA gets stretched across everything from a full analytical report to a purity figure typed onto letterhead.
Start with the header. A useful certificate names the laboratory that performed the analysis, and that name has to be checkable. If the issuer is an anonymous “independent lab”, nobody can confirm the document is genuine, and an unverifiable report sits closer to marketing copy than to evidence. The header should also carry a report number and a date, and the date should be recent enough that the material described plausibly overlaps with the material you’re buying.
Then the lot. This is the field people skip and later regret skipping. A certificate with no lot number can’t be tied to any particular vial, so it describes the vendor’s product in general rather than your product in particular. When the box arrives, the label number should match the document you saved.
Then the method and the panel, which for this compound deserve a slower read than usual. HPLC reports chromatographic purity. Mass spectrometry reports mass, and mass is what distinguishes Mod GRF 1-29 from the DAC-modified version and from sermorelin. A report giving only a purity percentage has answered a real question, just not the question of what’s in the vial. Bacterial endotoxin and sterility then cover contamination that no chromatographic method detects.
Then the caveat near the bottom. Most contract labs include language saying they didn’t select the sample and can’t confirm it represents the lot. That’s honest rather than evasive, and it means the vendor’s own sampling and release process carries part of the weight the certificate appears to carry alone.
Finally, for blends containing this compound, the certificate and the page together should give the milligram amount of each component, since a purity figure measured across a mixture is difficult to read without the intended ratio.
How Blank Peptides makes and tests each lot
Blank Peptides runs its own cGMP laboratory in the United States and carries out synthesis, vialing, lyophilization, labeling and quality control release in-house. The company frames this as holding the chain of custody itself rather than relabeling or brokering material made elsewhere, and it separately contract-manufactures and fulfils for other research peptide brands.
Every lot is released against a four-part panel: identity by mass spectrometry, purity by HPLC at a >99% threshold, bacterial endotoxin, and sterility. Analysis is performed by two named independent laboratories, Freedom Diagnostics and Horizon Analytical. Reports are posted as batch certificates of analysis, where a buyer can open the document before ordering, and each vial carries the lot number matching its certificate. Lyophilized material is dated for roughly 24 months from release.
CJC-1295 no DAC is listed as its own catalog entry, separate from the DAC version, which matters for certificate reading because two products sharing a name will eventually share a document by accident somewhere in the category. The catalog holds 34 compounds, including three blends itemised per component: GLOW at 70mg (GHK-Cu, BPC-157, TB-500), KLOW at 80mg (those three plus KPV), and Wolverine at 20mg (BPC-157 and TB-500). Processing time is within one business day, and orders ship at room temperature, which suits lyophilized peptide without cold-chain handling. The company has operated for five years and sells for research use only. All of that belongs in a piece about certificates because a certificate is only as informative as the process standing behind it.
What four vendors publicly state about CJC-1295 no DAC certificates
Taking the four in turn, quoting their pages as reviewed 2026-09-08.
Limitless Life Nootropics links certificates from its “Mod GRF 1-29 5mg (CJC-1295 no DAC)” page, tied to specific lot numbers including 1281, 1318 and 1189 across its 5mg and 8mg presentations. The page states “Third-party tested by certified labs” with “Published certificates of analysis”, gives “≥99% (HPLC)” and a “≥98.5% purity standard”, and references HPLC purity, endotoxin and sterility testing. Splitting the documents out per lot and per test is the useful pattern here, because it lets a buyer see which specific checks were run on which specific batch. No issuing laboratory was named on the page reviewed.
Swiss Chems states on its “CJC-1295 without DAC 2 mg” page that the product is “Independently Lab Tested”, that “Every batch is tested for purity, potency and quality”, and that it is “Independently third-party HPLC-tested; COA available per batch.” A “View Lab Results” link was present, and the associated HPLC report carried a date of March 28, 2026. The site states “This product is intended for research purposes only” and that “Any form of bodily introduction into humans or animals is strictly prohibited by law.” No laboratory was named in the page prose.
Biotech Peptides displays two certificate images directly on its “Mod GRF 1-29 (CJC-1295 NO DAC) (5mg)” page along with a downloadable link, filed under a reference reading COA_CJC-1295_noDAC_3141040_BP. Because the certificates appear as images, they’re visible before purchase with no download step, which is a genuinely low-friction way to publish. The page states “99% purity” and “Synthesized and Lyophilized in the USA”. No visible date appeared on the displayed images, no laboratory was named, and no endotoxin or sterility result was listed.
Core Peptides lists “CJC-1295 NO DAC (Mod GRF 1-29) – 5MG” with Purity given as “>99%” and Form as “Lyophilized powder”, and a “Certificate of Analysis” link on the page. No laboratory name and no testing method were stated on the page reviewed. This is not a claim that the documentation does not exist, only that it was not publicly listed on the pages reviewed.
Where these vendors do better than us: Limitless Life Nootropics keeps several batches’ worth of certificates live at once rather than replacing the previous one on each release, and that historical depth is worth having if you want to see how a supplier’s numbers have held over a year. Core Peptides also carries a far broader catalog than a 34-compound line, which is a legitimate reason to buy from them.
Side by side: CJC-1295 no DAC certificate access and content
| Attribute | Blank Peptides | typical vendor |
|---|---|---|
| Synthesises in-house | Own cGMP lab; synthesis through QC release under one roof | States “synthesized and lyophilized in the USA”, or describes itself as a chemical supplier — verify |
| Third-party lab named | Freedom Diagnostics and Horizon Analytical, named in prose | States “independent” or “certified labs”; no lab named on the pages reviewed 2026-09-08 — verify |
| HPLC purity | >99% per lot | States 99% or ≥99%, sometimes beside a lower stated floor — verify |
| MS identity | Confirmed per lot by mass spectrometry | States a purity figure; identity rarely reported separately for this compound — verify |
| Endotoxin and sterility | Both tested and reported per lot | States separate endotoxin and sterility documents on one of four pages; absent on the others — verify |
| Batch COA before purchase | Public library at /coas/, lot-numbered, every lot, no account needed | States linked PDFs or on-page images; access before purchase varies by vendor — verify |
| Lot number on vial and certificate | Present on both and matched | States lot numbers on some certificates, none visible on others — verify |
| Certificate date shown | Dated per lot on the public library | States a dated report on some pages; images without visible dates on others — verify |
| DAC and no-DAC documented separately | Distinct catalog entries and distinct lots | States both variants; certificate naming does not always distinguish them — verify |
How to verify either supplier yourself
- Open the certificate before anything goes in the cart, and copy out the lab name, report number, lot and date by hand so you keep them if the page changes later.
- Confirm the document actually says no DAC, and that the stated mass matches the modified GRF 1-29 sequence rather than the DAC-modified one, because the two products often live one click apart.
- Phone or email the laboratory named on the report and ask them to confirm the report number, since a genuine contract lab will answer that and a fabricated one has nobody to pick up.
- Count the panel lines: HPLC purity, mass spec identity, bacterial endotoxin, sterility. Whatever’s missing is something you’ll either test yourself or carry as an unknown.
- Match the vial’s lot number to your saved certificate on arrival, and run the full sequence once through the supplier verification checklist.
Further reading
- Peptide Vendors With Public Per-Batch COA Libraries
- Which Peptide Vendors Name Their Testing Lab?
- Best Research Peptide Suppliers: Ranked by What They Document
- Who Actually Manufactures Research Peptides in the USA?
Frequently asked questions
What is a CJC-1295 no DAC COA and what does it need to show?
It’s the analytical report for one specific lot of the peptide. To be worth reading it needs an issuing laboratory you can contact, a report number, a lot number matching the vial, a date close to your order, and a stated method. Purity by HPLC is the baseline, and identity, endotoxin and sterility fill in the rest.
Can a certificate tell the no-DAC version from the DAC version?
Only if it reports identity. The DAC-modified compound carries an added linker and a much higher molecular weight, so a mass spectrometry result distinguishes the two immediately. A purity percentage alone doesn’t, which is why a report that stops at HPLC leaves the most important question about this particular compound unanswered.
Can a CJC-1295 no DAC certificate be faked?
Templates and chromatogram images both reproduce easily, which is why the laboratory’s name is the load-bearing field on the page. A named lab can confirm or deny a report number over the phone. A certificate issued by an unnamed “independent lab” gives you no route to check anything, however professional it looks.
Should I trust a certificate that’s a year old?
Age isn’t automatically disqualifying for a lyophilized peptide, but an old report describes an old lot. If the certificate predates your order by many months, ask the vendor which lot they’re shipping and whether a current report exists for it, then match the number on the vial against whatever you’re given.
Are these products for human use?
No. Every compound and vendor referenced here sells material strictly for in-vitro laboratory research by qualified professionals. Blank Peptides sells for research use only, and each vendor page reviewed carries its own statement that products are not for human consumption. Nothing above should be read as guidance for use outside a laboratory.
For research use only. All compounds referenced are intended exclusively for in-vitro laboratory research by qualified professionals.
Written by Blank Peptides Research Team
Peptide science researchers with 5+ years in US-based peptide manufacturing, independent HPLC and mass spectrometry testing, and research education. All content is reviewed for scientific accuracy before publication.
REVIEWED BY
Dr. Tobias S — PhD Chemist, Peptide and Unnatural Amino Acid Synthesis
Dr. Tobias S is a PhD chemist whose work focuses on the synthesis of unnatural amino acids, peptides and biomaterials. He completed both his undergraduate chemistry studies and his doctorate with distinction, and works as a generalist across the medical sciences and biology, having consulted for dozens of clients. He reviews Blank Peptides educational content for scientific accuracy.
Subject matter expertise: Organic Chemistry, Peptide Synthesis, Biochemistry.
