Build my stack · free
Vol. 1 · Issue 04  ·  Spring 2026  ·  Independent. Reader-supported. Never sponsored.

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.

Build my stack  ·  free, 2 min See the 2026 vendor scorecard ›
2,400+ researchers have built their stack with the Bureau quiz. 14 protocols generated today
The Bureau, by the numbers
30+ Evidence-based guides
6 Vendors independently scored
60+ Compounds covered
2,400+ Stacks built by readers
0 Paid placements, ever
The 2026
Vendor Scorecard
Cover Story · April 2026  ·  Editor's Pick

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

Six months. Anonymous test orders, paid out of pocket. Customer-service trials. Cross-checks against each vendor's published documentation policy. Only two suppliers earned an Editor's Pick. Here is the unsponsored scorecard.

Read the full scorecard ›
✦ The Stack Builder  ·  Free

Stop guessing. Get a personalised research protocol in 2 minutes.

Answer 8 questions about your goal, training, sleep, and prior experience. The Bureau matches you to a stack with realistic dosing windows, side-effect notes, and vendor sourcing pulled straight from our scorecard. No email gate to view your results.

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Free, no signup wall Vendor-sourced, COA-checked Used by 2,400+ researchers
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.

No. 07 · Skin & Hair

Cosmetic peptides & dermatology

The peptides with real evidence for visible skin and hair improvements: GHK-Cu, PTD-DBM, Argireline, Matrixyl, and the stacks worth running.

Latest dispatch

From the reading list

Browse every article ›
Most read · last 30 days

The articles readers came back to.

01
Weight Loss

Peptides for weight loss: complete 2026 guide

18 min read
02
Vendors

2026 peptide vendor comparison & scorecard

14 min read
03
Muscle Growth

The best peptide stack for muscle growth

11 min read
04
Weight Loss · Cost

Tirzepatide cost in 2026: brand vs compounded

10 min read
05
Recovery

BPC-157 complete guide: dosing, evidence, sourcing

15 min read
06
Protocols

How to reconstitute peptides without mistakes

9 min read
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, packaging, batch documentation, and price changes against a shared editorial ledger, cross-check community reputation on Trustpilot, BBB, and research-peptide forums, and 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. We have never accepted payment in exchange for ranking, review placement, or editorial angle, and we publish a correction the day we get something wrong.

Read the full methodology ›
✦ The Bureau Stack Builder

Your stack, built around your goal, in under two minutes.

Eight questions. One protocol. Real dosing windows, side-effect notes, and a vendor pulled straight from our 2026 scorecard. Free, no email wall to see your results.

Build my stack ›

Used by 2,400+ researchers. Average completion time: 1 min 50 sec.