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peppersiteUpdated Sep 5
Welcome to peppersite

Everything we know about peptides, read against the paper.

2:44Watch firstWhy this exists

Browse the audits, look a compound up, run the bench math, or ask the room. Start anywhere. Peppersite checks the claim so you do not have to take it on faith.

Explore peppersite
Claim auditsFirst-person re-reads of the studies the market cites, graded on what they can support.18 essays→
Knowledge baseEvergreen reference on every compound we track: identity, purity, what the paper does and does not show.69 compounds→
Bench toolsReconstitution, concentration, doses per vial and how long one lasts. Every figure shown, not just the answer.5 tools→
ReconstitutionDosing referenceConcentrationDoses per vialHow long it lasts
VideosShort walkthroughs: reading a COA, spotting a shifted denominator.4 clips→
ForumCompare notes with other researchers. Cited, or it gets flagged.18 threads→
ComplianceWhat research use only means, and the disclosure the catalog requires.Reference→
The latest
All audits →
Claim audit · Semax· 2026-09-05Animal
Semax Isn't Under-Researched. It's Under-Translated.

Decades of work exists on this peptide. Almost nothing an English reader can actually open says a word about human cognition, and I sell the stuff.

11 claims graded
Claim audit · Semax· 2026-08-28Animal
Semax Is Approved in Russia. That's a Fact About a Regulator, Not a Result.

I went looking for the human trial I could hand you and came back with mice, a negative result, and one honest reason the Western data is thin.

11 claims graded
Claim audit · Semax· 2026-08-22Animal
Everyone Opens With "Semax Is Approved in Russia." Approval and Replication Are Two Different Columns.

A three-column test for reading any compound whose evidence sits behind a language border, and what the English-language literature on Semax actually contains.

10 claims graded
Claim audit · Semax· 2026-08-22Animal
"It's an Approved Drug in Russia." That's the Weakest Argument for Semax, Not the Strongest.

Semax has a real evidence base, which is exactly what makes it easy to overstate: almost none of it was collected in healthy people at a desk, and almost nobody outside its home research tradition has checked it.

12 claims graded
Claim audit · Semax· 2026-08-22Animal
Semax Has Been Used Clinically for Decades. That's a Claim About Russia, Not About Cognition.

The most convincing sentence in the Semax conversation is a fact about a healthcare system, and buyers keep mistaking it for evidence about a molecule.

12 claims graded
Claim audit · retatrutide· 2026-08-16
Lilly Sued Six Sellers Over Retatrutide. The Real Defendant Is Three Words.

The suits are aimed at "research use only", which is the sentence this whole market is built on, including the footer of the shop you buy from.

Claim audit · retatrutide· 2026-08-16
Lilly Cannot Sue Anyone for Selling an Unapproved Drug. So What Is the Claim?

A reader asked how you sue over a drug nobody is allowed to sell yet. The answer runs through a 2014 Supreme Court case and one word in it: "or".

Claim audit · BPC-157· 2026-08-16Expert commentary
BPC-157 Wasn't Banned. It Was Left Off a List.

Four separate regulatory facts get crushed into the word 'legal,' and almost every confident answer online is answering a question you didn't ask.

8 claims graded
Claim audit · Semax· 2026-08-13Animal
"Approved in Russia Since the 1990s." That's a Fact About Russia, Not About Semax.

I sell Semax, and when I followed the claims about it back to their sources, most of them stopped within two clicks. Here's how to tell which ones stop where.

12 claims graded
Claim audit · GHK-Cu· 2026-08-07Animal
GHK-Cu and KPV Are Both Three Amino Acids Long. That's Where the Resemblance Ends.

They share a shelf heading, not a mechanism. Here is the four-point test I run before I let the word "versus" into a sentence about two compounds.

21 claims graded
Claim audit · MOTS-c· 2026-08-07Animal
MOTS-c and SS-31 Are Not Two Versions of the Same Idea. One Is a Signal, One Is a Scaffold.

They share an address inside the cell and almost nothing else, which is why reading one's evidence into the other will steer you wrong.

30 claims graded
Clip· 2026-08-06
2:44
Why this exists
Clip· 2026-08-06
1:26
Epitalon's entire claim to fame is one enzyme
Claim audit · CJC-1295· 2026-08-06Expert commentary
Tesamorelin Is Approved. CJC-1295 Is Living Off Its Reputation.

The GH-axis peptides are not one evidence base, they're a steep ladder, and the rung most buyers think they're standing on isn't the one they're on.

3 claims graded
18
audits published
192
claims graded
69
compounds tracked

For in-vitro research use only · not for human consumption of any kind. Commerce lives on Teton Labs and requires a signed research disclosure.

peppersite
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Claims, checked against the paper

Everything peptides, in one place you can trust.

Audits that grade the evidence, a reference knowledge base, a working bench calculator, member discussion, and video, with commerce kept at arm’s length in our supplier’s catalog.

0:002:44
Watch first · 2:44
Why this exists
Explore the knowledge baseRead the latest audit
18
Audits published
192
Claims graded
69
Compounds referenced
4
Corrections published

The latest

All audits →
Claim audit · Semax· 2026-09-05Animal
Semax Isn't Under-Researched. It's Under-Translated.

Decades of work exists on this peptide. Almost nothing an English reader can actually open says a word about human cognition, and I sell the stuff.

11 claims graded
Claim audit · Semax· 2026-08-28Animal
Semax Is Approved in Russia. That's a Fact About a Regulator, Not a Result.

I went looking for the human trial I could hand you and came back with mice, a negative result, and one honest reason the Western data is thin.

11 claims graded
Claim audit · Semax· 2026-08-22Animal
Everyone Opens With "Semax Is Approved in Russia." Approval and Replication Are Two Different Columns.

A three-column test for reading any compound whose evidence sits behind a language border, and what the English-language literature on Semax actually contains.

10 claims graded
Claim audit · Semax· 2026-08-22Animal
"It's an Approved Drug in Russia." That's the Weakest Argument for Semax, Not the Strongest.

Semax has a real evidence base, which is exactly what makes it easy to overstate: almost none of it was collected in healthy people at a desk, and almost nobody outside its home research tradition has checked it.

12 claims graded
Claim audit · Semax· 2026-08-22Animal
Semax Has Been Used Clinically for Decades. That's a Claim About Russia, Not About Cognition.

The most convincing sentence in the Semax conversation is a fact about a healthcare system, and buyers keep mistaking it for evidence about a molecule.

12 claims graded
Claim audit · retatrutide· 2026-08-16
Lilly Sued Six Sellers Over Retatrutide. The Real Defendant Is Three Words.

The suits are aimed at "research use only", which is the sentence this whole market is built on, including the footer of the shop you buy from.

Claim audit · retatrutide· 2026-08-16
Lilly Cannot Sue Anyone for Selling an Unapproved Drug. So What Is the Claim?

A reader asked how you sue over a drug nobody is allowed to sell yet. The answer runs through a 2014 Supreme Court case and one word in it: "or".

Claim audit · BPC-157· 2026-08-16Expert commentary
BPC-157 Wasn't Banned. It Was Left Off a List.

Four separate regulatory facts get crushed into the word 'legal,' and almost every confident answer online is answering a question you didn't ask.

8 claims graded
Claim audit · Semax· 2026-08-13Animal
"Approved in Russia Since the 1990s." That's a Fact About Russia, Not About Semax.

I sell Semax, and when I followed the claims about it back to their sources, most of them stopped within two clicks. Here's how to tell which ones stop where.

12 claims graded
Claim audit · GHK-Cu· 2026-08-07Animal
GHK-Cu and KPV Are Both Three Amino Acids Long. That's Where the Resemblance Ends.

They share a shelf heading, not a mechanism. Here is the four-point test I run before I let the word "versus" into a sentence about two compounds.

21 claims graded
Claim audit · MOTS-c· 2026-08-07Animal
MOTS-c and SS-31 Are Not Two Versions of the Same Idea. One Is a Signal, One Is a Scaffold.

They share an address inside the cell and almost nothing else, which is why reading one's evidence into the other will steer you wrong.

30 claims graded
Clip· 2026-08-06
2:44
Why this exists
Clip· 2026-08-06
1:26
Epitalon's entire claim to fame is one enzyme
Claim audit · CJC-1295· 2026-08-06Expert commentary
Tesamorelin Is Approved. CJC-1295 Is Living Off Its Reputation.

The GH-axis peptides are not one evidence base, they're a steep ladder, and the rung most buyers think they're standing on isn't the one they're on.

3 claims graded

Sections

Claim audits
First-person essays that grade each claim against its study.
Read the latest →
Knowledge base
Evergreen reference: compounds, mechanisms, evidence, quality.
Browse compounds →
Forum
Member discussion on method, quality, and reading the evidence.
Open the forum →
Video
Short explainers, and long-form conversations on the record.
Watch →
Compliance
Research-use-only posture, disclosures, and our corrections log.
Read the policy →
Bench tools
The reconstitution calculator and concentration references.
Open calculator →
peppersite

A centralised hub for research peptides: audits, knowledge, discussion, video, and bench tools. Claims, checked against the paper.

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Research use only · not for human consumption of any kind