Vol. 1 · Issue 04  ·  Spring 2026

The reference desk for serious peptide research.

Vendor scorecards, dosing protocols, and compound reviews written for people who read the studies, not the sales pages.

Read the vendor scorecards Get the free dosing guide ›
The Bureau, by the numbers
30+ Evidence-based guides
5 Vendors independently scored
60+ Compounds covered
0 Paid placements, ever
The 2026
Vendor Scorecard
Cover Story · April 2026

We scored the five biggest peptide suppliers on COA transparency, shipping, and price consistency.

After six months of blind test orders, batch-to-batch purity checks, and customer-service trials, only two suppliers earned an Editor's Pick. Here is the unsponsored scorecard.

Read the full scorecard
The sections

What are you researching?

No. 01 · The Desk

Vendor scorecards

Five major suppliers, tested and scored on transparency, purity, shipping speed, and price stability. Updated quarterly.

No. 02 · Weight Loss

GLP-1s & metabolic peptides

Semaglutide, tirzepatide, and retatrutide covered in depth — dosing, side-effect management, and real-world cost breakdowns.

No. 03 · Recovery

BPC-157, TB-500 & tissue repair

The recovery peptides that actually have evidence behind them, reviewed against the ones that do not.

No. 04 · Muscle Growth

Growth hormone secretagogues

CJC-1295, Ipamorelin, GHRP-6 — the stacks, the protocols, and what the research actually says about lean mass.

No. 05 · The Bench

Protocols & practical guides

How to reconstitute, how to inject, how to store. The practical pages every researcher bookmarks.

No. 06 · Specialty

Nootropics, libido, longevity

The compounds outside the big three categories: Selank, Dihexa, PT-141, MOTS-c and the research backing each.

Latest dispatch

From the reading list

Browse every article
Our methodology

How the Bureau reviews vendors.

We place anonymous test orders. We pay with our own cards, on our own cadence. We request certificates of analysis the way a new customer would — not as press. We log shipping dates, packaging quality, batch numbers, and price changes in a shared ledger. Then we score each vendor on eight dimensions, weighted by how much they actually matter for a self-experimenter.

We publish the ledger. We publish the rubric. Where we take affiliate revenue, we disclose it at the top of every page. We have never accepted payment in exchange for ranking, review placement, or editorial angle — and we will publish a correction the day we get something wrong.

Read the full methodology