Editorial Policy
Evidence tiers
Every factual claim on this site is graded. Tier 1 — regulatory and instrument documents: approval records, pharmacopeial entries, and raw analytical output (mass spectra, chromatograms) tied to sample identifiers. Tier 2 — peer-reviewed literature: journal publications on peptide structure, synthesis, analysis and mechanism. Tier 3 — public market data: vendor-published certificates of analysis, catalog disclosures, and publicly referenced third-party laboratory reports. Tier 4 — unverified marketing: screenshots, storefront copy, forum claims. Tier 4 material is labeled as such or omitted. Where claims of different tiers conflict, the higher tier wins and the conflict is noted.
Phrases like “published research reports,” “the certificate states,” and “no public record was located” mark what the record actually supports. The site does not use treatment, cure, or efficacy language outside quoted literature findings, and it does not publish dosing or usage guidance in any form.
Sourcing rules
Numbers are never free-floating: a purity figure carries its method (HPLC wavelength, integration), a molecular weight carries its mass-spectrometric evidence, a vendor characterization carries the document it came from. If a figure cannot be attributed to a Tier 1–3 source, it does not appear. Where the public record for a brand is empty, the page says so — as several records in the vendor cluster do — rather than inventing company details.
Market content is industry research, never purchasing guidance: vendor pages name no sellers as recommendations, link no storefronts, and evaluate documentation practice structurally. Science pages — from polypeptide definitions to analytical methods — summarize published chemistry without recommending any compound or product.
Updates and corrections
Pages carry a research-review date and are re-checked when the underlying documents move: reissued COAs, new publications, catalog changes, or revised regulatory records. Material corrections are made in place and acknowledged to the correspondent where one prompted them.
Errors of fact are fixed regardless of when found. If you spot one, use the contact page — include the page URL and the sourced correct figure, and the fix is usually published quickly.
Frequently asked questions
How often is the data on simple peptides co reviewed?
Every page carries a research-review date. Pages are re-checked whenever the underlying documents change — new publications, reissued certificates, catalog updates — and vendor documentation is spot-checked on a recurring basis.
Does the site ever accept paid content or link placements?
No. No sponsorships, placements, affiliate links, or commissioned content exist anywhere on the site, and no page links a seller in any market channel.