Manufacturer / brand review
Selleck publishes a broad batch-QC policy. The reviewed examples should not be generalized into a full contaminant panel for peptides.
Inspected sample results
No product-specific laboratory result was inspected in this research pass. Published methods and service specifications are described below; they are not measured batch results.
Testing methods and purification
The QC page describes HPLC, NMR and elemental analysis, with batch COA/MS downloads. Its displayed examples concern inhibitors; elemental composition alone does not rule out every solvent or contaminant.
How often is testing performed?
Selleck claims testing every batch and comparison of each new batch with a reference. No peptide-specific lot series was inspected.
What remains unverified
Request the chosen peptide lot COA and relevant chromatograms. Broad claims of no hidden impurities are not accepted as analytical proof.
Catalogue snapshot
Examples from the linked source, not a complete or real-time stock list. Institutional entries describe service categories. Shipping to Cyprus is not verified.
Why this score?
Points reward evidence maturity, not measured product purity. Claim-only points are limited; unknown criteria remain zero. Full rules are available in Research guidesBusiness decision guidesour methodology.
Verification limits
Lab attribution: Not verified. A laboratory-hosted record, where explicitly identified, was inspected on the lab’s portal. No direct staff confirmation, blind purchase, independent sampling or full current-batch audit was performed by Peptide.cy. Absence of a recorded test is not proof of contamination.
Public claims about purification cost, manufacturing location or certifications are not treated as proof of a clean final product. An authenticated COA would still apply only to its identified sample.
Follow the evidence
Sources accessed 10 September 2026. Vendor claims and vendor-hosted reports are identified as such.
Selleck Chemicals customer reviews & ratings
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