Methodology & Editorial Standards
Most of what is sold as research peptide "testing" online is compromised before the first sample is ever measured. Vendors publish their own certificates. Reviewers take vendor money. Some "independent" labs are owned by the people they grade. The result is a market where the people buying have almost no way to tell a real result from a marketing document.
VialReport exists to be the exception, and to be auditable about it. This page explains exactly how we test, how we score, what each result means, and just as importantly, what we will never do. For the scoring rubric, how the number itself is calculated, see the Scoring & Grading page. If we ever break one of the commitments on this page, you should hold it against us. That is the point of writing them down.
We buy every product the same way you would: anonymously, on the open market, with no vendor involvement and no advance notice. Vendors do not know which of their products we have purchased, when, or under what name. They cannot send us a hand-picked batch, because they do not know a sample is being pulled at all.
This is the single most important thing we do, and it is the thing most of the market does not. A test means nothing if the seller got to choose the sample. Ours never do.
A peptide can degrade between the vendor's door and the lab bench. Heat and time break these molecules down. A low purity result on a sample that cooked in transit tells you nothing about the vendor, and it would be dishonest of us to publish it as if it did. So we control and document the entire journey:
Documenting the chain means that when we publish a result, we can show how the sample was handled from the moment it arrived to the moment it left for the lab. A vendor cannot wave away a bad grade by blaming the mail without us being able to produce the record.
Samples are relabeled with blind codes and submitted to an independent, ISO/IEC 17025-accredited laboratory that never sees the vendor name. The lab is not affiliated with any vendor we cover. It cannot be, because a lab owned by or tied to a seller is not an independent check, it is a conflict wearing a lab coat. We measure by HPLC, and every report names the specific methods that were run on that sample rather than implying a standard panel.
Our score measures one thing only: the quality of the product in the vial, as physically measured by the lab. It runs 0 to 100 and has two parts: Purity (60 points), the percentage of the contents that is the actual target peptide, by HPLC. Dose Accuracy (40 points), how close the vial's actual content is to what the label claims, measured in both directions. Too little shortchanges you. Too much is a dosing risk, and we treat it as one.
A vial with more peptide in it than the label says is not a lucky break. You dose off the label, so an overfilled vial quietly makes every dose stronger than you intended, every time, and you never see it happen. For a lot of compounds that is a tolerance problem. For the dose-sensitive ones, the GLP-1 class especially, it is a real safety risk, because those are titrated slowly on purpose and a hidden overfill breaks the whole schedule. So we score accuracy in both directions and we penalize a large overfill harder than the same-sized underfill. Underfilling costs you money. Overfilling can cost you more than money.
We deliberately keep the score this narrow. "We measured 91% purity and 14 mg in a 20 mg vial" is a fact, not an opinion. That is the entire point. The other things we check, identity, the vendor's certificate, and safety, are reported separately and clearly labeled, never blended into the number.
Why we will not blend safety into the score
Purity does not predict safety. A product can be 99% pure and still carry endotoxins or sterility problems, because purity and contamination measure completely different things. Anyone who folds them into a single number is implying that a clean purity result means a safe product. It does not. We keep safety a separate, clearly marked result so that a good purity score can never quietly hide a contamination risk, and so that a VialReport score means exactly the same thing on every report we publish.
Almost every vendor publishes a Certificate of Analysis. We assess those certificates and report the assessment beside the score, never inside it. We ask two separate questions, and we keep them under two separate names because they can point in opposite directions on the same vial.
COA Accuracy
Do the numbers on the certificate agree with what the lab measured on the vial we bought? Both figures are printed. This is free on every report.
Vendor Certificate Review
Is the certificate a trustworthy document for this specific vial? We check its provenance, whether its lot matches the vial, how old it is relative to the order, and whether it agrees with the vendor's own label.
We describe documents. We do not assign motives.
We publish the gap between what a certificate claims and what the lab measured, and we publish what we can verify about the document itself. We stop there.
We do not characterize how a certificate came to exist, because the evidence cannot support it. A vendor who ships a lot other than the one tested produces exactly the same numbers as a vendor who never tested anything. Those are different failures with different explanations, and a certificate in isolation cannot tell them apart. Naming one of them would be a guess dressed up as a finding, and we would rather publish a smaller claim we can stand behind completely.
A vendor is also never marked down for understating their own product. If the certificate claims less than we measured, that reads as a match. Honesty is never penalized here, the same way it is never penalized in the score.
We tell you what is in the vial. We rank products by their measured quality, the same way a consumer testing publication ranks any other product, and we will say plainly which vendor's version of a compound tested cleanest and most consistently. That verdict is the work. It is what separates a useful report from a wall of numbers.
Our line
We report on the contents and quality of a product. We do not tell anyone to use these compounds, how to use them, or in what amount. We do not provide medical, dosing, or treatment guidance, and nothing we publish should be read as encouragement to administer any substance to a human or animal. Our verdicts are about what the product is, never about what you should do with it.
That line is not a legal hedge bolted onto the bottom of the page. It is the discipline that keeps our analysis honest. The moment a testing publication starts telling people what to take, it stops being a testing publication and becomes something else with a very different set of motives. We are not that, and we do not intend to become it.
What we will never do
These are the commitments. They are the reason to trust us over a faceless database or a vendor-funded badge, and you should treat any violation as disqualifying:
We will never take vendor money to test, grade, or feature a product. No sponsorships, no paid placement, no vendor-submitted samples, no badge a vendor can buy. Our income comes from readers, never from the companies we grade.
We will never let a vendor see or influence a result before it is published. No previews, no retests of failing results on request, no quiet edits. Retests happen only at our discretion and the original result stays on the record.
We will never hide a failure. We publish every result we commission, including the ugly ones, including the ones from vendors people like. A tester who only publishes good news is running a marketing program.
We will never gate the verdict that protects you. The grade, the safety findings, the identity result, and the COA Accuracy result are free, always. We charge for the depth and the receipts behind the verdict, never for the warning itself.
We will never pretend a number is more than it is. We report only what was measured, scoped to exactly what the lab tested, and we say so. We do not imply broader validation than the data supports, and we do not assert anything the measurement cannot carry.
Who is behind this
Shawn
Founder, VialReport
VialReport is run by a real person whose name is on this work, not an anonymous system. That is deliberate. In a market full of shills hiding behind brand names and "objective" platforms that answer to no one, accountability means a human being willing to stand behind every grade and correct the record, in the open, when we get something wrong. We will make mistakes. When we do, we will fix them visibly and tell you what changed. That is what standing behind your work actually looks like.
Independent. Reader-funded. Blind-purchased. Every result on the record.
That is the whole commitment, and it is the whole business.
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