Zeptix Labs
Is Zeptix Labs legit? What the records show
We have tracked Zeptix Labs since Nov 2026 and follow 20 of their products, covering 15 peptides. Prices run from $19.99 to $110.00. On their own certificates, 16 of 19 measured vials are more than 3% over or under the amount on the label.
Check it yourself: find the report number or QR code on a certificate and look it up on the lab's own website.
Higher than 68% of the 894 shops we score
Max 60 until we lab-test them.
The shaded part is the shops Zeptix Labs scores higher than.
Our lab testLocked / 40Not tested yet
We have not sent a Zeptix Labs product to an independent lab yet, so these 40 points are locked. The lab report will go on this page when we do.
Reviews0 / 20No reviews found online
We found no reviews for them on external review sites.
That gives 0 of 20.
Community1.5 / 15Little or no talk found
We found little to no forum or Reddit talk about them. Nobody has left a review on Peptide Scanner yet.
That gives 1.5 of 15.
Certificates19 / 2515 of 15 peptides covered
Publishing: 13.4 of 15. We hold 27 lab certificates from their website, naming Accumark Labs and Freedom Diagnostics. We found 12 of the 27 on the issuing lab's own website (not every lab has a public lookup). 15 of the 15 peptides we track have a matching certificate from an independent lab (any size counts). 14 of the 27 certificates include a contamination test (endotoxin, sterility or heavy metals). 18 of 18 dated certificates were issued in the last 6 months. Newest: Oct 2026 (8 days old). Oldest: May 2026.
Claims match: 5.6 of 10. Their own certificates against their claims: 4 of 19 measured vials are within 3% of the label (12 overfilled, 3 underfilled); 0 of 23 certificates fall below the 99% purity they advertise.
Their claims against their certificates: 16 of 19 measured vials off label.
A certificate is the shop's own document. It is not our test.
Zeptix Labs reviews
No reviews on Peptide Scanner yet.
Bought from Zeptix Labs?
Write a reviewZeptix Labs prices
Checked 7 Nov 2026
Show all 20 prices ↓Showing all 20 prices
Ships to: United States
Their certificates vs their claims
No site-wide purity promise found on their website. Vial content is still checked against the label.
- certificates read
- 25
- vials outside ±3% of label
- 16 / 19
- beyond ±10% (major)
- 9
- site-wide purity claim to check
- None
How this is checked
- Vial content
- Measured net peptide content against the size on the label. Within ±3% is on label, 3 to 10% is off label, beyond ±10% is a major deviation (under- or overfilled). When a certificate weighs several vials of the batch, the vial farthest from the label is the one judged, and with several purity results the lowest counts. Blends are only checked when the certificate lists each component.
- Purity
- HPLC purity on each certificate against the purity the supplier promises site-wide on its own website. Up to 1 point below the claim is amber, more than that is red. Only a direct promise counts (“99%+ purity guaranteed”); explanations of what purity means, one product's figure and page code are not treated as a claim. A certificate that reports only a bound (“>99%”) is judged only when the bound meets the claim, and a specification line is never read as a result.
- Whose certificate
- A certificate is only read once our client-identity review has looked at it, and one issued to a different company is left out. A certificate issued to the company that runs the supplier's own website counts as the supplier's. A file hosted on another supplier's website is not counted for this one. Only peptide certificates are read: bacteriostatic water, acetic acid and other diluents are left out, and so are product data sheets, which state a specification rather than a batch result.
- Main impurity
- Shown when the certificate itemises it: a named impurity (TFA, deletion sequence, oxidation…) or the largest secondary peak in the HPLC peak table. Most certificates report only a purity figure, so the rest of the sample is not itemised.
- Score
- These checks are 10 of the 25 certificate points: vial content 7 (full credit within ±3%, half up to ±10%, none beyond, over- and underfilled alike), purity 3 (98% is the bar when a supplier advertises no figure). Fewer than 5 readable results gives half credit rather than a guess.
- Source and limits
- These are the supplier's own published certificates, read automatically from the PDF or image. Janoshik results tables are read twice from the image, cell by cell, and a figure the two readings disagree on is left out rather than guessed. A certificate covers one batch on one date. We have not tested these batches ourselves.
| Product | Label to measured | Purity | Main impurity | Lab | Certificate |
|---|---|---|---|---|---|
| Epitalon | 10mg → 11.52mg Overfilled +15.2% | 99.44% | 0.56% not itemised | accumark-labs | Open certificate Epitalon |
| GHK-Cu | 50mg → 58.86mg Overfilled +17.7% | 100% | Not itemised | accumark-labs | Open certificate GHK-Cu |
| GLP-3 R 10mg | 10mg → 11.04mg Overfilled +10.4% | 99.88% | 0.12% not itemised | freedom-diagnostics | Open certificate GLP-3 R 10mg |
| Ipamorelin | 5mg → 5.97mg Overfilled +19.4% | 99.453% | 0.55% not itemised | accumark-labs | Open certificate Ipamorelin |
| Melanotan II | 10mg → 8.9mg Underfilled -11.0% | 99.075% | 0.92% not itemised | accumark-labs | Open certificate Melanotan II |
| PT-141 | 10mg → 11.04mg Overfilled +10.4% | 99.92% | 0.08% not itemised | accumark-labs | Open certificate PT-141 |
| Semaglutide | 5mg → 6.14mg Overfilled +22.8% | 99.56% | 0.44% not itemised | accumark-labs | Open certificate Semaglutide |
| Semaglutide 10mg | 10mg → 11.04mg Overfilled +10.4% | 99.87% | 0.13% not itemised | freedom-diagnostics | Open certificate Semaglutide 10mg |
Show all 25 certificates read ↓Showing all 25 certificates read
| Product | Label to measured | Purity | Main impurity | Lab | Certificate |
|---|---|---|---|---|---|
| Sermorelin | 5mg → 5.8mg Overfilled +16.0% | 99.08% | 0.92% not itemised | accumark-labs | Open certificate Sermorelin |
| GHK-Cu 100mg | 100mg → 96.27mg Under label -3.7% | 99.84% | 0.16% not itemised | freedom-diagnostics | Open certificate GHK-Cu 100mg |
| GLP-3 R 30mg | 30mg → 31.56mg Over label +5.2% | 99.48% | 0.52% not itemised | freedom-diagnostics | Open certificate GLP-3 R 30mg |
| MOTS-c 10mg | 10mg → 10.58mg Over label +5.8% | 99.32% | 0.68% not itemised | freedom-diagnostics | Open certificate MOTS-c 10mg |
| Retatrutide 20mg | 20mg → 20.85mg Over label +4.3% | 99.91% | 0.09% not itemised | freedom-diagnostics | Open certificate Retatrutide 20mg |
| Tesamorelin 10mg | 10mg → 10.51mg Over label +5.1% | 99.22% | 0.78% not itemised | freedom-diagnostics | Open certificate Tesamorelin 10mg |
| Thymosin Beta-4 | 10mg → 9.66mg Under label -3.4% | 99.1% | 0.90% not itemised | accumark-labs | Open certificate Thymosin Beta-4 |
| Tirzepatide | 30mg → 27.87mg Under label -7.1% | 99.788% | 0.21% not itemised | accumark-labs | Open certificate Tirzepatide |
| BPC-157 | Not measured | 99.699% | 0.30% not itemised | accumark-labs | Open certificate BPC-157 |
| BPC-157, TB500 (Thymosin Beta 4) | Blend, per-component content not listed | 99.72% | 0.28% not itemised | accumark-labs | Open certificate BPC-157, TB500 (Thymosin Beta 4) |
| CJC-1295 (no DAC), Ipamorelin | Blend, per-component content not listed | 99.08% | 0.92% not itemised | accumark-labs | Open certificate CJC-1295 (no DAC), Ipamorelin |
| Cagrilintide | 5mg → 5.12mg On label +2.4% | 99.684% | 0.32% not itemised | accumark-labs | Open certificate Cagrilintide |
| GHK-Cu, BPC-157, TB-500 | Blend, per-component content not listed | 99.61% | 0.39% not itemised | accumark-labs | Open certificate GHK-Cu, BPC-157, TB-500 |
| KLOW 80mg | Blend, per-component content not listed | 99.58% | 0.42% not itemised | freedom-diagnostics | Open certificate KLOW 80mg |
| Selank 10mg | 10mg → 9.75mg On label -2.5% | 99.22% | 0.78% not itemised | freedom-diagnostics | Open certificate Selank 10mg |
| Semaglutide 5mg | 5mg → 5.1mg On label +2.0% | 99.27% | 0.73% not itemised | freedom-diagnostics | Open certificate Semaglutide 5mg |
| Tirzepatide | Not measured | 99.909% | 0.09% not itemised | accumark-labs | Open certificate Tirzepatide |
Zeptix Labs FAQ
Is Zeptix Labs legit?
We score Zeptix Labs 21 of 60, from reviews, community posts and the certificates they publish. We have not lab-tested them yet. The reasons for each part of the score are in the verdict above.
Does Zeptix Labs publish lab reports (COAs)?
Yes. We hold 27 certificates from their website. They cover 15 of the 15 peptides we track. Labs named on them: Accumark Labs and Freedom Diagnostics. We found 12 of them on the lab's own website. A certificate is the shop's own document, not our test.
How much does Zeptix Labs charge?
On 7 Nov 2026 we tracked 20 prices from $19.99 to $110. The cheapest is Semaglutide at $19.99. The full list is in the price table above.
Where does Zeptix Labs ship?
They ship to United States.
Has Peptide Scanner tested Zeptix Labs?
Not yet. Lab results are worth 40 points, and those stay locked until we test one of their products at an independent lab.
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