Retatrutide 20 mg vial
Lot: PNP-RTT-2706
- HPLC area purity
- 99.31%
- Measured content
- 20.24 mg
- Label claim
- 20 mg
- Fill accuracy
- 101.2% (at or over label)
Report CPT-RETA-20-091226
Independent testing
Lab results
13 products were submitted to Canada Peptide Testing, an independent analytical laboratory in Canada, and tested by RP-HPLC-UV at the wavelength specified in each report against a ≥ 98.0% area purity specification. Every one conformed, the lowest measuring 98.84%. Each certificate below is the document as issued, and each can be verified at the laboratory rather than taken on our word.
Published certificates
Select any certificate to open the full-size PDF. You can also check each report directly with Canada Peptide Testing.
Ipamorelin 10 mg vial
Lot: PNP-IPA-2603
- HPLC area purity
- 99.98%
- Measured content
- 10.82 mg
- Label claim
- 10 mg
- Fill accuracy
- 108.2% (at or over label)
Report CPT-IPA-10-091226
GHK-Cu 50 mg vial
Assigned reference: PNP-GHK-1002
- HPLC area purity
- 99.84%
- Measured content
- 40.8 mg
- Label claim
- 50 mg
- Fill accuracy
- 81.6% (under label)
Report CPT-GHKCU-50-091226
MOTS-c 40 mg vial
Lot: PNP-MOT-1002
- HPLC area purity
- 99.74%
- Measured content
- 42.2 mg
- Label claim
- 40 mg
- Fill accuracy
- 105.5% (at or over label)
Report CPT-MOTS-40-091226
BPC-157 10 mg vial
Assigned reference: PNP-BPC-1002
- HPLC area purity
- 99.71%
- Measured content
- 10.65 mg
- Label claim
- 10 mg
- Fill accuracy
- 106.5% (at or over label)
Report CPT-BPC-10-091226
KPV 10 mg vial
Lot: PNP-KPV-2611
- HPLC area purity
- 99.32%
- Measured content
- 11.36 mg
- Label claim
- 10 mg
- Fill accuracy
- 113.6% (at or over label)
Report CPT-KPV-10-091226
NAD+ 500 mg vial
Lot: PNP-NAD-2615
- HPLC area purity
- 99.27%
- Measured content
- 483.5 mg
- Label claim
- 500 mg
- Fill accuracy
- 96.7% (under label)
Report CPT-NAD-500-091226
Tesamorelin 20 mg vial
Lot: PNP-TES-2614
- HPLC area purity
- 99.04%
- Measured content
- 20.34 mg
- Label claim
- 20 mg
- Fill accuracy
- 101.7% (at or over label)
Report CPT-TESA-20-091226
CJC-1295 (mod GRF 1-29) 10 mg vial
Lot: PNP-CJC-2604
- HPLC area purity
- 99.12%
- Measured content
- 10.34 mg
- Label claim
- 10 mg
- Fill accuracy
- 103.4% (at or over label)
Report CPT-CJCN-10-091226
PT-141 10 mg vial
Assigned reference: PNP-PT141-1002
- HPLC area purity
- 99.18%
- Measured content
- 10.73 mg
- Label claim
- 10 mg
- Fill accuracy
- 107.3% (at or over label)
Report CPT-PT141-10-091226
SS-31 10 mg vial
Assigned reference: PNP-SS31-1002
- HPLC area purity
- 99.46%
- Measured content
- 10.28 mg
- Label claim
- 10 mg
- Fill accuracy
- 102.8% (at or over label)
Report CPT-SS31-10-091226
Thymosin Alpha-1 10 mg vial
Lot: PNP-TA1-2619
- HPLC area purity
- 98.91%
- Measured content
- 9.94 mg
- Label claim
- 10 mg
- Fill accuracy
- 99.4% (under label)
Report CPT-TA1-10-091226
TB-500 10 mg vial
Lot: PNP-TB5-2612
- HPLC area purity
- 98.84%
- Measured content
- 10.41 mg
- Label claim
- 10 mg
- Fill accuracy
- 104.1% (at or over label)
Report CPT-TB500-10-091226
What this page does not cover
These 13 certificates cover the vial sizes named on them and the lots or assigned references named on them. They are not a statement about the rest of the catalogue, about other vial sizes of the same compound, or about lots shipped before 2026-09-12. For peptide lots not listed here, manufacturer QC documentation may be available on request — a different document, from the manufacturer’s own laboratory, which we do not describe as independent. Semax, Selank and Tirzepatide COAs are temporarily unavailable. Bacteriostatic water does not have a COA.
Questions
- Who tested these products?
- Canada Peptide Testing, an independent analytical laboratory in Canada. Pure North submitted sealed vials as a paying client on 2026-09-04; they were tested on 2026-09-09 and reported on 2026-09-12. Each certificate carries its own report number and verification key, and can be checked at the laboratory's own record rather than taken from us.
- Which products have an independent certificate?
- 13 currently published: Retatrutide 20 mg vial, Ipamorelin 10 mg vial, GHK-Cu 50 mg vial, MOTS-c 40 mg vial, BPC-157 10 mg vial, KPV 10 mg vial, NAD+ 500 mg vial, Tesamorelin 20 mg vial, CJC-1295 (mod GRF 1-29) 10 mg vial, PT-141 10 mg vial, SS-31 10 mg vial, Thymosin Alpha-1 10 mg vial, TB-500 10 mg vial. Only the reports listed here are currently available on this site. A published report does not establish coverage for other sizes or lots.
- What is actually measured?
- Area purity by RP-HPLC-UV at the wavelength specified in each report against a ≥ 98.0% area purity specification, and content (mass) against a working standard. That is the whole panel. There is no mass-spectrometry identity run, no endotoxin or LAL figure, no water content and no related-substances breakdown on these certificates. Where you see those on another vendor's lab card, it is a different test that we have not had done.
- Why publish fill accuracy?
- Because the certificate publishes it, and the certificate is one click away. Fill accuracy is measured content against the label claim: over 100% means the vial held more than it claimed, under 100% means less. For example, GHK-Cu 50 mg measured 40.80 mg, 81.6% of label. Showing the good numbers and hiding that one would make every other number on this page worth less.
- How do I check a certificate is real?
- Every certificate carries a report number and a verification key, and links to the issuing laboratory's own record for that document. Check it there. A certificate that only exists on the vendor's own website is evidence about the vendor, not about the vial.
- What about the manufacturer's certificate?
- Manufacturer QC may be available on request for other peptide lots and is not independent. Semax, Selank and Tirzepatide COAs are temporarily unavailable. Email purenorthpeptides@proton.me with the batch number printed on your vial and customer service can confirm the available documentation and its scope for your lot. Bacteriostatic water does not have a COA.
For laboratory research use only. Past lots and how they are handled: certificate archive.