Nextech Laboratories
Is Nextech Laboratories legit? What the records show
We have tracked Nextech Laboratories since Sep 2026 and follow 24 of their products, covering 20 peptides. Prices run from $36.00 to $115.00. On their own certificates, 1 of 1 measured vials is more than 3% over or under the amount on the label, and 0 of 1 purity results fall below the 99% they advertise.
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 92% of the 894 shops we score
Max 60 until we lab-test them.
The shaded part is the shops Nextech Laboratories scores higher than.
Our lab testLocked / 40Not tested yet
We have not sent a Nextech Laboratories product to an independent lab yet, so these 40 points are locked. The lab report will go on this page when we do.
Reviews6.4 / 20Low rating, some reviews
External review sites: ★ 3.9 ± 0.1 average, from 50–100 reviews. We show a range because sites round their ratings differently.
That gives 6.4 of 20.
Community6 / 15Mixed
Forum and Reddit talk is mixed. Nobody has left a review on Peptide Scanner yet.
That gives 6 of 15.
Certificates16 / 251 of 20 peptides covered
Publishing: 11 of 15. We hold 1 lab certificate from their website, naming ILS Labs. We did not find it on the issuing lab's own website (not every lab has a public lookup). 1 of the 20 peptides we track has a matching certificate from an independent lab (any size counts). The certificate includes a contamination test (endotoxin, sterility or heavy metals). 1 of 1 dated certificates were issued in the last 6 months. Newest: Jun 2026 (4 months old).
Claims match: 5 of 10. Too few of their certificates show a vial or purity result we can check against their product pages, so this part holds a neutral 5.
Their claims against their certificates: 1 of 1 measured vials off label, 0 below the 99% they advertise.
A certificate is the shop's own document. It is not our test.
Nextech Laboratories reviews
No reviews on Peptide Scanner yet.
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Checked 7 Nov 2026
Show all 24 prices ↓Showing all 24 prices
Ships to: United States
Their certificates vs their claims
Website claim: 99% purity. …ing and advanced analytical methods. Shop research products 99% HPLC purity Third-party Tested Monday-Thursday Same-day shipping before…
Source (read 2026-09-25)
- certificates read
- 1
- vials outside ±3% of label
- 1 / 1
- beyond ±10% (major)
- 0
- below advertised purity
- 0 / 1
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 |
|---|---|---|---|---|---|
| Tesamorelin | 10mg → 10.65mg Over label +6.5% | 99.38% Meets 99% | 0.62% not itemised | Unknown | Open certificate Tesamorelin |
Nextech Laboratories FAQ
Is Nextech Laboratories legit?
We score Nextech Laboratories 28 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 Nextech Laboratories publish lab reports (COAs)?
Yes. We hold 1 certificate from their website. They cover 1 of the 20 peptides we track. Labs named on them: ILS Labs. We could not find any of them on the lab's own website. A certificate is the shop's own document, not our test.
How much does Nextech Laboratories charge?
On 7 Nov 2026 we tracked 24 prices from $36 to $115. The cheapest is Epithalon at $36. The full list is in the price table above.
Where does Nextech Laboratories ship?
They ship to United States.
Has Peptide Scanner tested Nextech Laboratories?
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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