Claims vs COA / Purus Peptides
Purus Peptides: claims vs COA
No site-wide purity promise found on the website. Vial content is still checked against the label.
42
certificates read
20 / 21
vials outside ±3% of label
14
beyond ±10% (major)
—
below advertised purity
| Product | Label → measured | Purity | Main impurity | Lab | COA |
|---|---|---|---|---|---|
| ARA-290 10mg | 10mg → 12.06mg Overfilled +20.6% | 99.823% | 0.18% not itemised | janoshik | Open |
| Adamax 5mg | 5mg → 6.01mg Overfilled +20.2% | 99.153% | 0.85% not itemised | janoshik | Open |
| BPC-157 10mg | 10mg → 11.69mg Overfilled +16.9% | 98.167% | 1.83% not itemised | janoshik | Open |
| DSIP 5mg | 5mg → 5.51mg Overfilled +10.2% | 99.056% | 0.94% not itemised | janoshik | Open |
| GHK-cu 100mg | 100mg → 111.24mg Overfilled +11.2% | 99.565% | 0.44% not itemised | janoshik | Open |
| GHK-cu 50mg | 50mg → 56.21mg Overfilled +12.4% | 99.616% | 0.38% not itemised | janoshik | Open |
| GLP-2TZ 20MG | 20mg → 22.56mg Overfilled +12.8% | 99.882% | 0.12% not itemised | janoshik | Open |
| KPV 10mg | 10mg → 11.55mg Overfilled +15.5% | 97.991% | 2.01% not itemised | janoshik | Open |
| PP-2T 40mg | 40mg → 44.33mg Overfilled +10.8% | 99.603% | 0.40% not itemised | janoshik | Open |
| PP-3R 10mg | 10mg → 11.18mg Overfilled +11.8% | 99.527% | 0.47% not itemised | janoshik | Open |
| PP-3R 20mg | 20mg → 22.12mg Overfilled +10.6% | 99.656% | 0.34% not itemised | janoshik | Open |
| Retatrutide 10mg | 10mg → 11.66mg Overfilled +16.6% | 99.368% | 0.63% not itemised | janoshik | Open |
| Retatrutide 20mg | 20mg → 22.27mg Overfilled +11.4% | 99.595% | 0.41% not itemised | janoshik | Open |
| VIP 10mg | 10mg → 11.19mg Overfilled +11.9% | 99.736% | 0.26% not itemised | janoshik | Open |
| Dihexa 5mg | 5mg → 4.6mg Under label -8.0% | 99.834% | 0.17% not itemised | janoshik | Open |
| Kisspeptin 10mg | 10mg → 10.9mg Over label +9.0% | 99.385% | 0.61% not itemised | janoshik | Open |
| MOTS-c 40mg | 40mg → 43.4mg Over label +8.5% | 98.616% | 1.38% not itemised | janoshik | Open |
| MT2 10mg | 10mg → 10.41mg Over label +4.1% | 99.828% | 0.17% not itemised | janoshik | Open |
| PP-3R 30mg | 30mg → 32.81mg Over label +9.4% | 99.645% | 0.36% not itemised | janoshik | Open |
| Tesamorelin 10mg | 10mg → 10.75mg Over label +7.5% | 98.201% | 1.80% not itemised | janoshik | Open |
| AOD-9604 5mg | 5mg → 5.15mg On label +3.0% | 99.359% | 0.64% not itemised | janoshik | Open |
| ARA-290 | Not measured | 99.187% | 0.81% not itemised | janoshik | Open |
| Cagrilintide | Not measured | 99.741% | 0.26% not itemised | janoshik | Open |
| GHK-cu | Not measured | 99.786% | 0.21% not itemised | janoshik | Open |
| GHK-cu | Not measured | 99.776% | 0.22% not itemised | janoshik | Open |
| Glutathione | Not measured | 99.313% | 0.69% not itemised | janoshik | Open |
| Glutathione | Not measured | 99.078% | 0.92% not itemised | janoshik | Open |
| Ipamorelin | Not measured | 99.711% | 0.29% not itemised | janoshik | Open |
| LL-37 | Not measured | 99.65% | 0.35% not itemised | janoshik | Open |
| MOTS-c | Not measured | 98.633% | 1.37% not itemised | janoshik | Open |
| PE-22-28 | Not measured | 99.776% | 0.22% not itemised | janoshik | Open |
| PE-22-28 | Not measured | 99.556% | 0.44% not itemised | janoshik | Open |
| PP-3R | Not measured | 98.408% | 1.59% not itemised | janoshik | Open |
| Pp-2T | Not measured | 99.835% | 0.17% not itemised | janoshik | Open |
| SLU-PP-332 Img | — → 0.93mg Not checked | — | — | janoshik | Open |
| Selank | Not measured | 99.548% | 0.45% not itemised | janoshik | Open |
| Selank | Not measured | 99.087% | 0.91% not itemised | janoshik | Open |
| Semax | Not measured | 99.867% | 0.13% not itemised | janoshik | Open |
| Semax | Not measured | 98.049% | 1.95% not itemised | janoshik | Open |
| Thymosin Alpha-1 | Not measured | 99.215% | 0.78% not itemised | janoshik | Open |
| VIP | Not measured | 98.516% | 1.48% not itemised | janoshik | Open |
| pp-2T | Not measured | 99.828% | 0.17% not itemised | janoshik | Open |
How this is checked
- Vial content. Measured net peptide content against the size on the label. Within ±3% is on label, 3–10% 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 — whether the automatic check or a manual review found it. 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. The same rules decide which certificates appear on supplier and product pages. 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.
- Trust Score. These checks are 10 of the 25 Transparency 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.
- 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.