Oath Peptides Transparency Rating: Public COA Archive Scored.

How the transparency category was scored

The transparency rubric is built from six documented inputs: COA public availability, search granularity, COA disclosure depth, recency of the latest test, per-vial verification mechanism, and external corroboration of the archive. The Oath Peptides transparency rating, on this rubric, is 4/5 — five of the six inputs land at the top of their band, and COA public availability lands a step down because 250 of the 425 certificates on file in August 2026 are readable without an account while the rest require a login.

Transparency is the second-highest weighted category in the composite (25%) for a methodological reason: a testing program that is not publicly verifiable is not buyer-actionable. Public searchability by batch number is what converts the testing program from a marketing claim into a verifiable record. A testing program that exists only in private QC documents is not, for the rubric's purposes, scoreable on transparency at all.

INPUT — COA public availability

Value: 250 of the 425 certificates posted as of August 2026 are viewable without creating an account; the remaining certificates require logging in.

Source: Direct observation of the brand site's COA section (2026-08-13), corroborated by RealPeptidesScores' audit (which describes the archive as 'portal-verifiable' and confirms the public-fetch flow for the open subset).

Disposition: Upper-half-of-band, not top. The majority of the archive is viewable with no account — three search keys, no signup to browse the open subset — but roughly two-fifths of the certificates now sit behind a login, and a criterion named 'public availability' cannot return the top band while a substantial share of the record is gated. A vendor that gates its entire archive behind an account login sits a step below this; a vendor that emails COAs on request sits two steps down; a vendor that does not publish COAs at all sits at the bottom. This is the input that pulls the transparency category from 5/5 to 4/5.

INPUT — Search granularity

Value: Searchable by peptide name, by batch number, or by CAS number. Three keys.

Source: Direct observation of the COA archive search interface.

Disposition: Top-of-band. Most public COA archives in this market support search by product name only; a smaller subset support search by batch number; very few support search by CAS number. Three-key searchability allows a buyer to verify a specific lot they have received in hand (batch number) or to verify the compound's chemical identity is what was advertised (CAS number). Both are different and useful verification paths.

INPUT — COA disclosure depth

Value: Each COA shows: purity percentage, test date, and the testing lab name. The archive summary separately names USP <85> as the endotoxin standard for the program.

Source: Direct observation across every COA in the public archive.

Disposition: Top-of-band. A per-certificate disclosure of purity, test date and named lab, sitting under an archive that names its endotoxin standard, is the rubric's strongest band. Vendors that name no lab or no standard sit a step down. Vendors that publish only a generic 'tested' badge with no values sit at the bottom.

INPUT — Recency of latest COA

Value: Latest visible COAs dated August 2026 — the same month as observation.

Source: Direct observation, dated directly on each certificate.

Disposition: Top-of-band. Current-month recency confirms an active program. A program whose latest tests are 6+ months old would sit several bands down.

INPUT — Per-vial QR-code verification

Value: Every shipped vial carries a scannable QR code that resolves to the lot's specific HPLC/MS report.

Source: Independently observed by peptiderecon and Peptide Protocol Wiki; customer-attested by multiple oath.reviews reviewers (Jeffrey H., Melissa K., Pamela T.) who report scanning QR codes against their actual lots and finding the reports match.

Disposition: Top-of-band. Per-vial QR verification is the rubric's strongest per-product verification mechanism — it bridges the gap between the published archive and the specific physical lot in a buyer's hand. Vendors that publish a generic lot-batch list without per-vial linking sit a step down.

INPUT — External corroboration of the archive

Value: RealPeptidesScores independently lists 142 certificates from Oath's archive. The RPS listing is a partial external snapshot of the same archive, captured by an independent auditor with its own published methodology. Source: RealPeptidesScores audit (2026-05-09). Disposition: Top-of-band. Even as a partial view, RPS rates Oath Grade A with the audit summary 'four times the cadence of anyone else we audited.' An external auditor rating a partial-view program at the top of the scale is a meaningful signal — the rubric position does not depend on the snapshot being complete.

The customer-funded independent retest

On 2026-05-23, an oath.reviews customer (Nancy I., five-star) reported sending her own sample of Oath tirzepatide for an independent third-party test. The reported result: the value lined up with the posted COA. That is the cleanest single piece of validation evidence on the transparency rubric — a buyer exercising the verification path the public COA archive is meant to support, and the published values surviving the exercise. We note this as a customer attestation, not a structured audit: the lab Nancy I. used and the specific batch retested are not in the public record. What is in the public record is that the verification path is being exercised by buyers and the published values are holding up.