Midwest Peptide
Why Midwest Peptide is a Top 10 supplier
On 4 Nov 2026 we ranked Midwest Peptide 10th of the 892 shops we score, with 33 of 60. That put it in the top 10 shops we score.
- Not yetOur lab test
- 11.2 / 20Reviews
- 3 / 15Community
- 18.8 / 25Certificates
We hold 35 of their lab certificates, from Precision Mass Spec, Freedom Diagnostics.
The badge is for November 2026 only. Scores change when we find new certificates or reviews, so we check every month. No shop pays for its score or its badge. See each part of the score
Is Midwest Peptide legit? What the records show
We have tracked Midwest Peptide since Nov 2026 and follow 14 of their products, covering 13 peptides. Prices run from $29.99 to $69.99. On their own certificates, 6 of 12 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 99% of the 894 shops we score
Max 60 until we lab-test them.
The shaded part is the shops Midwest Peptide scores higher than.
Our lab testLocked / 40Not tested yet
We have not sent a Midwest Peptide product to an independent lab yet, so these 40 points are locked. The lab report will go on this page when we do.
Reviews11.2 / 20High rating, some reviews
External review sites: ★ 4.8 ± 0.1 average, from 100–500 reviews. We show a range because sites round their ratings differently.
That gives 11.2 of 20. We discount review sites a little, so a strong record does not max this on its own.
Community3 / 15Forum talk is thin
Forum and Reddit talk about them is thin. Nobody has left a review on Peptide Scanner yet.
That gives 3 of 15.
Certificates18.8 / 258 of 13 peptides covered
Publishing: 12.9 of 15. We hold 35 lab certificates from their website, naming Precision Mass Spec and Freedom Diagnostics. We found 3 of the 35 on the issuing lab's own website (not every lab has a public lookup). 8 of the 13 peptides we track have a matching certificate from an independent lab (any size counts). 0 of the 35 certificates include a contamination test (endotoxin, sterility or heavy metals). 9 of 10 dated certificates were issued in the last 6 months. Newest: Sept 2026 (7 weeks old). Oldest: May 2026.
Claims match: 5.9 of 10. Their own certificates against their claims: 3 of 11 measured vials are within 3% of the label (8 overfilled); 0 of 25 certificates fall below the 99% purity they advertise.
Their claims against their certificates: 6 of 12 measured vials off label.
A certificate is the shop's own document. It is not our test.
Midwest Peptide reviews
No reviews on Peptide Scanner yet.
Bought from Midwest Peptide?
Write a reviewMidwest Peptide prices
Checked 7 Nov 2026
Show all 14 prices ↓Showing all 14 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
- 28
- vials outside ±3% of label
- 6 / 12
- beyond ±10% (major)
- 4
- 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 |
|---|---|---|---|---|---|
| Selank · 10mg146f0c57d1e1.png | 10mg → 11.04mg Overfilled +10.4% | 99.71% | Acetate 12% | Unknown | Open certificate Selank · 10mg |
| BPC-157 · 10mgce126e079b97.png | 10mg → 11.04mg Overfilled +10.4% | 99.48% | Acetate 12% | Unknown | Open certificate BPC-157 · 10mg |
| 9a24e982398a.png | 13mg → 14.83mg Overfilled +14.1% | 99.42% | Acetate 12% | Unknown | Open certificate 9a24e982398a.png |
| Sermorelin 10mg | 10mg → 12.23mg Overfilled +22.3% | 99.28% | 0.72% not itemised | freedom-diagnostics | Open certificate Sermorelin 10mg |
| cb5b6fd272a1.png | 50mg → 51.73mg Over label +3.5% | 99.9% | 0.10% not itemised | ils-labs | Open certificate cb5b6fd272a1.png |
| semaglutide | 10mg → 10.69mg Over label +6.9% | 99.88% | 0.12% not itemised | ils-labs | Open certificate semaglutide |
| 0daf0c4d4121.png | Not measured | 99.47% | Acetate 12% | Unknown | Open certificate 0daf0c4d4121.png |
| KPV · 10mg5bb8dd3baa70.png | 10mg → 10.19mg On label +1.9% | 99.81% | Acetate 12% | Unknown | Open certificate KPV · 10mg |
Show all 28 certificates read ↓Showing all 28 certificates read
| Product | Label to measured | Purity | Main impurity | Lab | Certificate |
|---|---|---|---|---|---|
| 07e8845d7d90.png | Not measured | 99.87% | Acetate 12% | Unknown | Open certificate 07e8845d7d90.png |
| TB-500 · 10mgcb1ff0b2854a.png | 10mg → 10.18mg On label +1.8% | 99.74% | Acetate 12% | Unknown | Open certificate TB-500 · 10mg |
| f54b74e3fc90.png | Not measured | 99.82% | Acetate 12% | Unknown | Open certificate f54b74e3fc90.png |
| 8f2d31a192ff.png | Not measured | 99.81% | Acetate 12% | Unknown | Open certificate 8f2d31a192ff.png |
| 533d7f014bdd.png | 70mg → 71.05mg On label +1.5% | 99.86% | 0.14% not itemised | Unknown | Open certificate 533d7f014bdd.png |
| a7783514bbde.png | Not measured | 99.94% | Acetate 12% | Unknown | Open certificate a7783514bbde.png |
| c60b1fecd5ed.png | 30mg → 30.11mg On label +0.4% | 99.87% | Acetate 12% | Unknown | Open certificate c60b1fecd5ed.png |
| 9469ffadc5fd.png | Not measured | 99.9% | Acetate 12% | Unknown | Open certificate 9469ffadc5fd.png |
| a58f258c91eb.png | Not measured | 99.87% | Acetate 12% | Unknown | Open certificate a58f258c91eb.png |
| 59b4801495_image | Not measured | 99.87% | Acetate 12% | Unknown | Open certificate 59b4801495_image |
| b73f2fa51f5d.png | 80mg → 82.15mg On label +2.7% | 99.73% | 0.27% not itemised | Unknown | Open certificate b73f2fa51f5d.png |
| 91e39b94efc1.png | 10mg → 10.13mg On label +1.3% | 99.48% | Acetate 12% | Unknown | Open certificate 91e39b94efc1.png |
| ab994b71c684.png | Not measured | 99.91% | Acetate 12% | Unknown | Open certificate ab994b71c684.png |
| fa521336524b.png | Not measured | 99.79% | Acetate 12% | Unknown | Open certificate fa521336524b.png |
| 7ddf5cdef3d0.png | Not measured | 99.24% | Acetate 12% | Unknown | Open certificate 7ddf5cdef3d0.png |
| fc489199c08d.png | Not measured | 99.82% | Acetate 12% | Unknown | Open certificate fc489199c08d.png |
| 8b45e7811032.png | Not measured | 99.93% | Acetate 12% | Unknown | Open certificate 8b45e7811032.png |
| b6e514b3f56f.png | Not measured | 99.94% | Acetate 12% | Unknown | Open certificate b6e514b3f56f.png |
| BPC-157/TB-500 (Wolverine Blend) | Blend, per-component content not listed | 99.73% | Acetate 12% | Unknown | Open certificate BPC-157/TB-500 (Wolverine Blend) |
| CJC-1295 (No DAC) | — → 11.66mg Not checked | 99.42% | 0.58% not itemised | freedom-diagnostics | Open certificate CJC-1295 (No DAC) |
Midwest Peptide FAQ
Is Midwest Peptide legit?
We score Midwest Peptide 33 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 Midwest Peptide publish lab reports (COAs)?
Yes. We hold 35 certificates from their website. They cover 8 of the 13 peptides we track. Labs named on them: Precision Mass Spec and Freedom Diagnostics. We found 3 of them on the lab's own website. A certificate is the shop's own document, not our test.
How much does Midwest Peptide charge?
On 7 Nov 2026 we tracked 14 prices from $29.99 to $69.99. The cheapest is Melanotan I at $29.99. The full list is in the price table above.
Where does Midwest Peptide ship?
They ship to United States.
Has Peptide Scanner tested Midwest Peptide?
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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