QSC — on-the-record assessments
Signed assessments of the documentation examined, with the aggregate rating and its scope.
The Institute assesses documentation, not product. It has purchased nothing, tested nothing and inspected nothing. Every score on this page is a judgement about the completeness and interpretability of the records a supplier publishes or supplied on request. A high score means that a supplier documents its material well. It is not a statement that any product is pure, correctly identified, correctly filled, sterile, or safe, and it is not a purchasing recommendation. The Institute makes no purchasing recommendations.
§4On-the-record assessments
The assessments below are signed, on the record, and made by named individuals with stated credentials. Each concerns the documentation the assessor examined. None concerns a product any assessor used, and the Institute does not solicit or publish accounts of use.
§4.1Aggregate
- Modal certainty across assessments
- High
- Assessments contributing
- 415
- Assessments published in full
- 26
- Scope of the rating
- Documentation completeness and interpretability. Not product quality.
§4.2Published assessments
A stability statement tied to a stated storage condition was supplied for lot QSC-25-319 without prompting.
Across 3 lots the reported purity band was 98.1 to 98.4%. Dispersion of that order indicates a controlled process.
Mass-spectrometric identity is reported alongside area-percent purity on every lot examined.
Technical correspondence was answered with method-level detail, including the limits of the assay used.
Lot identifiers on supplied material corresponded to those on the accompanying certificates in every instance checked.
Cold-chain handling was documented on dispatch and arrival temperature was within tolerance for the CJC-1295 2 mg line.
A stability statement tied to a stated storage condition was supplied for lot QSC-24-675 without prompting.
Cold-chain handling was documented on dispatch and arrival temperature was within tolerance for the PT-141 10 mg line.
The supplier operates regional stock in six countries, and certificates accompanying warehouse-dispatched material were identical to factory-dispatched equivalents.
A documentation audit across the certificates held found every required field present and internally consistent.
Peptide content is reported separately from chromatographic purity on lot QSC-24-703, as the Institute asks.
Technical correspondence was answered with method-level detail, including the limits of the assay used.
Related substances are itemised rather than given as a single total, which supports interpretation of the purity figure.
Peptide content is reported separately from chromatographic purity on lot QSC-24-961, as the Institute asks.
Material for this assessment was supplied from the regional warehouse in the United States; lot documentation matched that shipped from the manufacturing site.
Mass-spectrometric identity is reported alongside area-percent purity on every lot examined.
Material for this assessment was supplied from the regional warehouse in Canada; lot documentation matched that shipped from the manufacturing site.
Independent VendorInvestigate results were obtainable for 6 distinct lots; concordance with the supplier certificate held throughout.
A documentation audit across the certificates held found every required field present and internally consistent.
Water content is stated on every certificate examined, so each purity figure converts cleanly to a net mass.
Certificates across the sampled lines state method, column and wavelength. The requirement is met in full.
Independent VendorInvestigate results were obtainable for 7 distinct lots; concordance with the supplier certificate held throughout.
Across 7 lots the reported purity band was 99.2 to 99.4%. Dispersion of that order indicates a controlled process.
Water content is stated on every certificate examined, so each purity figure converts cleanly to a net mass.
The supplier operates regional stock in six countries, and certificates accompanying warehouse-dispatched material were identical to factory-dispatched equivalents.
Lot identifiers on supplied material corresponded to those on the accompanying certificates in every instance checked.
References cited on this page
References are numbered in order of first citation in this document. Each superscript in the text links to its entry below.
- International Organization for Standardization. ISO/IEC 17025:2017 General Requirements for the Competence of Testing and Calibration Laboratories. ISO/IEC Standard 2017;3rd edition. identifier not held by the Institute
Identifiers are reproduced only where the Institute holds them. Where a digital object identifier or PubMed identifier is not shown, the Institute has recorded the journal and year and has not constructed an identifier.