Three questions, in the order you actually hit them.

Is it real? Is it still intact? Does it do anything? Each book answers one of them, and each one stands alone — but the questions arrive in that order, and most people eventually need all three.

$79$103all three books
Get all three Compare them first

262 pages · 2 offline tools · 3 printable cards · every future edition free · 30-day money-back guarantee

The three Field-Guide Series covers side by side
01

Is it real?

The Sourcing Safety Blueprint. Reading a Certificate of Analysis, catching a forged one, and auditing the seller behind it before you ever open the lab data.

What’s inside →

02

Is it still intact?

The Stability Field Manual. What heat, water, ice, light and glass do to a peptide — and a profile of 45 compounds read off their own published sequences.

What’s inside →

03

Does it do anything?

The Evidence Ledger. The same 45 compounds graded A to E on the strength of the human evidence, with 288 citations printed so you can check any grade.

What’s inside →

Two of them cover the same 45 compounds.

That’s deliberate, and it’s the reason the bundle is worth more than the sum of its parts. Look a compound up in the Ledger and you learn whether it was ever shown to do anything. Look the same compound up in the Manual and you learn whether the one in front of you is still intact. The two books line up entry for entry, so you can answer both questions in about a minute.

  • 262 pages across three books
  • Two offline tools — a stability calculator and a searchable evidence explorer, both working with no internet
  • Three printable cards for the fridge, the desk and the wall
  • 134 + 288 numbered sources, every one checkable
  • Every future edition free, for life — all three books, next revision November 2026

The maths, so you can check it.

Bought separately the three are $17, $37 and $49 — $103. Together they’re $79. That’s $24 off, and it’s the only discount on this site because a saving you can verify beats one you’re asked to believe.

  No. 01 · The Blueprint
$17 · 26 pages
No. 02 · The Stability Field Manual
$37 · 122 pages
No. 03 · The Evidence Ledger
$49 · 114 pages
The question it answersIs it real?Is it still intact?Does it do anything?
Buy it if you’reAbout to trust a lab report from a seller you don’t know.Holding something already, and unsure whether it survived the journey.Deciding whether a compound is worth your time at all.
What you’ll be able to doRead a COA, catch a forgery, and audit the seller behind it.Work out what a temperature excursion actually cost you, and look up your own compound.Tell strong evidence from a confident sentence — and check any grade yourself.
CoversCertificates of Analysis and vendor behaviour.45 compounds, profiled from their own sequences.The same 45 compounds, graded A to E.
SourcesCited throughout.134 numbered sources.288 citations, every one checkable.
Comes withA printable 12-point card.An offline calculator + a fridge card.An offline searchable explorer + a grade card.
Dosing, vendors, protocolsNone, ever.None, ever.None, ever.

Swipe the table sideways to see all three.

The same rules in all three No dosing. No protocols. No vendor recommendations. No medical advice. Every figure traces to a PubMed ID, an FDA-approved label section, or a named pharmacopoeial standard. Where the evidence doesn’t exist, the books say so rather than filling the space with a plausible number. Educational and research purposes only.

Before you buy

I only want one of them. Is that fine?

Completely. Each book stands on its own and each has its own page on this site. The bundle exists because most people who want one eventually want the others, not because the books need each other to make sense.

I already bought the Blueprint. Can I upgrade?

Email support@peptidecorner.net and I’ll sort it out — you shouldn’t pay twice for the same book because you bought early.

How do I get them?

Instant download through Gumroad. Each book arrives as its own set of files with a one-page START HERE sheet telling you which to open first. The two interactive tools are ordinary web pages — double-click and they open in your browser, with nothing to install.

What does “free updates for life” cover?

All three books. New compounds, revised entries and corrections as they happen, re-downloaded from the same link at no cost. Gumroad notifies you when an edition is posted.

What if they’re no use to me?

Email support@peptidecorner.net within 30 days for a full refund on the bundle. No form, no explanation needed.

The Complete Field-Guide Series

$79$103
Buy all three on Gumroad

30-day money-back guarantee · instant download · or start with the three free guides

Tom
I'm Tom. I'm a chartered process engineer — auditing suppliers and picking holes in lab data is what I do for a living. This site is that same job, pointed at peptides. More about me →