Investigative report · 2026-05

peptidescore.com is a fabricated peptide review site.

peptidescore.com presents itself as an "independent, non-profit consumer protection organization" conducting "independent laboratory analysis" of peptide samples. None of that survives the live evidence. peptidescore.com publishes fabricated rankings against real US peptide vendors, runs auto-generated content that was never reviewed by a human, names no laboratory anywhere on its site, and operates a pay-to-remove model where vendors are charged for the right to edit defamatory statements peptidescore.com itself published about them.

We built Real Peptide Scores in response. Below is the evidence — six observable tells, every one re-checkable on the live peptidescore.com site today.

Other sites in this same pattern exist; peptidescore.com is the most active example we've documented. As we encounter additional fabricated review sites we'll add them here.

Exhibit A · The ranking that doesn't track to anything

Polaris Peptides: peptidescore.com's #1, our F.

peptidescore.com ranks Polaris Peptides at the top of five peptide categories — BPC-157, Tirzepatide, Retatrutide, NAD+, and CJC-1295. We audited Polaris in May 2026 and found:

  • Zero public COAs. The /lab-results page is marketing copy; the actual reports are gated behind email plus an order ID.
  • No lab named, anywhere on the site.
  • The polarispeptidesusa.com domain entered the Wayback Machine on 2026-04-19 — three weeks before the audit. The "every batch tested" claim has no observable backing.

A vendor that publishes nothing verifiable cannot be ranked first against vendors that publish 50+ third-party COAs. The peptidescore.com ranking does not track to evidence — it is a fabricated score. See the full audit →

What we observed on peptidescore.com

Six observable tells.

No. 01The same copy-paste error in every category

The description for every peptide category — Semaglutide, Tirzepatide, Retatrutide, BPC-157, NAD+, CJC-1295 — claims ratings are "calculated from the test scores of Tirzepatide samples." A category description copied verbatim across six different peptides is not an editorial slip; it is the residue of a templated content pipeline that was never reviewed by a human.

"These PeptideScore Ratings are calculated from the test scores of Tirzepatide samples sourced from each vendor…" — peptidescore.com homepage, Semaglutide section, May 2026.

No. 02Self-contradicting site statistics

The same homepage simultaneously states "99 samples from 147 vendors", "76 samples from 114 vendors", and "96 vendors". A real audit operation knows how many samples it has run.

No. 03No named laboratory, anywhere

Every claim refers to a "PeptideScore" test but no laboratory is named. There is no chain of custody, no lab letterhead, no way to verify any "test" through an issuing lab's portal.

No. 04Vendor profiles editorialize unsourced findings

peptidescore.com's vendor profiles open with statements like "<vendor> advertises a high level of product purity. Independent laboratory analysis of sampled products identified elevated lead contamination, which does not align with such assertions." The "View Report" link does not lead to a lab report; the "1 Sample" claim does not specify which batch was sampled or how it was authenticated. The vendor cited may publish dozens or hundreds of public batch-level COAs through a named third-party laboratory — peptidescore.com cites none of it.

No. 05Pay-to-edit-your-defamation

Each vendor profile carries a banner: "Editing the description is available only for Premium vendors. Please upgrade to a Premium plan…" The site asserts a defamatory finding, then offers to let the vendor pay for the right to edit it.

No. 06Broken outbound links

Several vendor pages on peptidescore.com link to https://undefined?utm_… rather than a real vendor URL. The site ships JavaScript template artefacts as published links — another tell of an unreviewed pipeline.

Same vendors. Different question.

Reputation is not the same as verifiable evidence.

Existing peptide-vendor review sites mostly answer "which vendor do users like?" or "which vendor pays the highest affiliate?" We answer "which vendor's claims can be re-checked?". The two answers diverge in interesting ways.

Power Peptides, for example: 1,144+ Reviews.io reviews at 4.8 stars, going back to 2019. We grade them F because they publish zero public COAs and name no lab. The reputation is real. The verifiable evidence isn't there. Both facts can be true. This site scores on the verifiable evidence — that's the question we exist to answer.

peptidescore.com vs. Real Peptide Scores by evaluation dimension
Dimension peptidescore.com Real Peptide Scores
Primary signal Unsourced "test" claims attributed to "PeptideScore" Public COAs + named lab + portal verification
Lab named on findings No Yes — every lab named, linked where verifiable
Re-checkable evidence No — "View Report" links do not resolve to lab reports Yes — every claim links to a public URL
Methodology published One-paragraph hand-wave; per-category descriptions copy-paste "Tirzepatide" across all six categories Mechanical rubric, public
Pay-to-edit Defamatory profile, then "Premium" upsell for the right to edit it Corrections require evidence, not payment
Self-disclosure Anonymous operator Methodology, dataset, and corrections process all public (about)
Dataset downloadable No Yes — JSON per vendor, CC BY 4.0

Three pillars

What "verifiable" actually means here.

Public, indexed COAs

The COA page reachable without login. URLs that resolve, dated certificates, batch numbers visible.

Named, verifiable lab

The COA names the issuing lab. The lab has a portal or third-party lookup. We can re-check at least one COA.

Branded artifacts match

The vial in the COA matches the vendor's actual product packaging. Generic stock vials are a red flag.

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