Every figure here is checkable at the laboratory that produced it
Comparison / Europe

One Column Filled In. The Other One Is Yours

Every comparison table on a shop's website was filled in by one of the two companies in it. This one has thirteen rows, one column filled in from a published certificate and a seller's own terms. The other column is empty, and it is for the site you already have open.

Thirteen rows, one page

Filled in

13

values you can look up

on somebody else’s server

Left for you

00

the seller you already have

open in the other tab

One column filled from a published certificate

You have two tabs open, and both of them say the same four things.

Third party tested. Highest purity. Fast shipping across Europe. Trusted by thousands.

Read the two homepages side by side and you will find those promises in almost the same words. That is not a scandal. It is what a category sounds like once everyone has read everyone else's website. It also leaves you exactly where you started. Two shops, one card, and no way to tell them apart from the outside.

New to this? This page assumes you already know what research peptides are. If you do not, start with this one instead. It covers what this market is, why it exists, and what lab testing has found in it.

So here is the part nobody says out loud. Every comparison table you have seen on a shop's website was filled in by one of the two companies in it. The winning column was written by the winner. So was the losing column.

We are not going to do that. Partly because it would be dishonest, and partly for a duller reason: we do not know which site you have open. We have never seen it.

So we filled one in and left yours empty.

The method

Why one column of this table is empty

Three reasons, and the third is the one that matters.

The first is the one above. A shop's comparison table is a document about the shop that wrote it, and the losing column is fiction by construction.

The second is that German law is stricter than most readers expect about what a seller may say about a named rival. We would rather tell you that than pretend the restraint is generosity.

The third is simply that we do not know your other tab, so any value we typed into that column would be a guess dressed as a fact.

The parts we could still rig

We chose the rows, and we are not neutral about where you go next. Those are the only two things left that we could tilt, so hold them against us while you read.

Which is why the same thirteen rows run against every seller here, including the one we link to. Every value in every filled column is one you can go and check yourself, on a page or on a laboratory's server. If a row could not be checked, it is not in the table.

Keep the other tab open. Fill your column in as you go.

Rows one to six

What the laboratory has on file

Janoshik / Task #163572 / RT6423CP

These six separate a picture of a certificate from a record at a laboratory.

Table one, the record
The check One seller's answers, in full The site you have open
01Which laboratory is named on the report itself, not in the banner? Janoshik for you to fill in
02Is there a batch code on the page, before you pay? RT6423CP for you to fill in
03What is the laboratory's own reference number for the test? Task #163572 for you to fill in
04Is there a verification key, and an address to type it into? THC88ILYEN8S, at janoshik.com/verify/ for you to fill in
05Whose name does the laboratory have in the client field on its own page? Crystal Peptides EU for you to fill in
06Which result lines does the report actually carry? Amount and purity, each with a figure against it for you to fill in

An empty cell here is not a claim about the other seller. It is a space for you to write in.

Row four is the one worth actually doing. Type the Crystal Peptides key at janoshik.com/verify/ and what loads is the laboratory's page, not the seller's. Same task number, same batch, and a client field reading Crystal Peptides EU. Type the American Peptides code at bioviridians.com/coa-search.html and a different laboratory does the same thing.

That is the difference between a document a seller shows you and a record a seller cannot reach. We typed both keys ourselves on 11 September 2026 before publishing this page.

The empty box

What an empty box actually tells you

Twenty sellers / September 2026

You are going to reach a row you cannot fill in. Probably several. Here is what that means, and what it does not.

It does not mean the seller is a fraud. Plenty of honest shops have never published a task number, because almost nobody has ever asked them for one. An empty box is not evidence about them.

It is evidence about you. It tells you what you would be buying on. Not on a document. On the seller's word, or on the word of whoever sent you. That can still be a fine decision. People make it every day and most of them get their parcel. You just now know which kind of decision you are making, which is more than you knew four minutes ago.

One rule keeps this honest

The row has to be fillable before you pay. A certificate that turns up after you email and ask is a real certificate, and it is also a certificate on the seller's timing rather than yours. Write that row blank and put a note beside it.

It is also the fastest check there is. Of twenty sellers we probed in September 2026, twelve had no public certificate page at all, and you find that out in about ten seconds.

And if you can fill a row in, that is a good sign about them, not a bad one about us. If the site in your other tab names its laboratory, prints a batch, and gives you a key that works, you have found a seller worth reading. That is the point of the exercise. It was never to make us win.

Rows seven to ten

What the report says in the laboratory's own words

Crystal Peptides / 13 May 2026

These four come off the document rather than off the marketing.

Table two, the document
The check One seller's answers, in full The site you have open
07What was the laboratory asked to do, in its own wording? “Common GLP-1 peptide blind test (Semaglutide, Tirzepatide and Retatrutide)” for you to fill in
08What dates are on the record? Ordered 13 May 2026. Sample received 18 May. Analysed 25 May. for you to fill in
09Are both numbers in the results box shown, not just the percentage? 22.43 mg against a 20 mg label. Purity 99.744%. for you to fill in
10Does the headline purity number on the site match the figure on the certificate? Site says over 99%. Report says 99.744%. Consistent. for you to fill in

Row seven is the one most people have never heard of. Tests requested is a field on the report, filled in by the laboratory, describing what it was asked to do. Crystal Peptides' says blind test, which means the lab was not told what the sample was and had to identify it. American Peptides' does not: it lists the methods the laboratory ran, which is a different and weaker thing. A seller cannot write either line. Only the lab can.

Row eight is smaller and stranger. There are three dates on this record, twelve days apart, and they are days apart, because a sample was posted and took time to arrive. Nobody forging a document invents a shipping delay.

Rows eleven to thirteen

What happens after the money moves

Every shop looks the same on the good day. These three are about the other one.

Table three, recourse
The check One seller's answers, in full The site you have open
11Is the report on the page itself, with no email required to get it? Yes. A public library, 109 files. for you to fill in
12What does the delivery page say about your country? EU dispatch. Free standard over €200. Customs seizure is named in the terms. for you to fill in
13What do the published terms say when it goes wrong? Seven days to report a wrong, missing or damaged item, and only a full continuous unboxing video is accepted as proof. One free replacement for confirmed non-delivery or seizure, a refund if that also fails, and no second replacement. for you to fill in

Row twelve is worth reading twice, and not for the speed. Look at whether the seller's own delivery table puts a customs step in front of your country. If it does, the parcel you are about to buy crosses a border where somebody who is neither you nor the seller decides what happens to it.

Row thirteen is the seller's own wording in full, including the parts that are against them. Seven days to report a problem, a continuous unboxing video as the only proof accepted, one free replacement and no second one. They publish it, and it is printed here rather than left for you to find at the bottom of a terms page.

Read that answer and you will notice it is not generous. The reason it is worth printing anyway is that a seller who will not tell you the limits before you pay is telling you something about the limits.

The limits

What thirteen rows cannot tell you

This form is narrow on purpose, and it is worth being clear about what it leaves open.

Run the thirteen rows on us first

Start with row four, because it is the only one that takes you off this website and onto somebody else's. Then take the form to the tab you already had open.

What happens if it goes wrong

Every seller looks the same on the good day. Four things decide what happens on the bad one, and all four are published before you order if you go and read them.

  • How long you have to report it. Windows we found in September 2026 ran from 48 hours to seven days from delivery. Two days is easy to miss if a parcel arrives while you are away.
  • What proof they demand. Some accept photographs. At least one accepts nothing but a full continuous unboxing video, which means the moment to protect yourself is before you open the parcel, not after you find the problem.
  • Whether customs seizure is covered. Some terms name it and cover it once. Others are silent, and silence is not cover.
  • What happens the second time. Look for whether a replacement that also fails gets refunded, or whether that is where the terms stop. Customs duties are yours everywhere. Your statutory rights as an EU consumer are unaffected by any seller's terms.

Read the seller's own published pages, not their marketing, and none of these terms were written by us.

Want the thirteen rows as a page you can keep?

We will send the form as one page, one column filled in from a published certificate and the other ruled and empty, so you can run it on any seller in any country.

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Named lab Task number Key and the address Thirteen rows filled in One column left for you