Buyer's Guide
How To Read A Lab Certificate In 60 Seconds. Four Lines. That's It.
Most buyers open the certificate, see a big number, and close it. That number is one line out of four. Here is the whole check, in plain English, so you know exactly what you are paying for before you pay.
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A certificate of analysis looks technical. Tables. Codes. Chromatograms.
Ignore most of it.
You only need four lines to know if the document is worth anything. Find them, and you can judge any supplier in under a minute. Miss them, and you are trusting a pretty PDF.
PrimalGenix publishes every certificate before you buy.
Open any lot report on their site. No account needed.
Visit PrimalGenix →1The lot number
Start here. Always.
A lot number ties the report to one specific production batch. Then check it against the number printed on your vial.
Same number? The report is about your vial. Different number, or no number at all? The report is about someone else's vial.
No lot number means no proof. It is a sample document, not your document.
2The purity line, and how it was measured
This is the big number everyone sees. Usually a percentage.
Look for the method next to it. HPLC is the standard. It separates the sample into its parts and reports how much of it is the main substance.
A percentage with no method beside it is a claim. A percentage with a method and a lab beside it is a result.
Read the method, not just the number.
3The identity line
Here is the line most people skip. It matters most.
Purity tells you how clean the sample is. It does not tell you what the sample is. A vial can be very pure and still be the wrong thing.
Identity is confirmed by a second test, usually mass spectrometry. It weighs the molecule and checks it against what the label says. Look for "conforms" or "matches".
Purity answers "how clean?". Identity answers "clean what?". You want both answers on the page.
Sample layout. The real report for each lot is published on its PrimalGenix product page.
4The lab name and the date
Who ran the test? When?
You want an independent, accredited lab. Not the seller grading its own homework. And you want a date that makes sense for the lot you are buying.
A test with no tester is an opinion.
Try it right now on a real certificate.
Pick any product on PrimalGenix, open its lot report, and find all four lines.
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Visit PrimalGenix →
5Four red flags that should stop you
- The certificate arrives after you pay. You should be able to read it before you spend a cent.
- One PDF for every product. Same report, same date, every listing. That is a template, not a test.
- Purity only. No identity line means nobody confirmed what is in the vial.
- No lab name. If nobody signs it, nobody stands behind it.
| The check | PrimalGenix | What you often see |
|---|---|---|
| When you can read it | Before you order | After payment, by request |
| Lot number | Matches the vial label | Missing or generic |
| Purity | HPLC, 99%+ | A number, no method |
| Identity | Mass spectrometry | Often missing |
| Who tested | Independent U.S. lab | Not stated |
6What you get when you order from PrimalGenix
- A certificate for every lot, published on the product page before you buy.
- Purity by HPLC and identity by mass spectrometry, from an accredited U.S. lab.
- The same lot number on the report and on your vial.
- 24-48 hour U.S. dispatch. Orders before 2 PM ET ship the same business day.
- Free U.S. shipping on orders over $250, and 10% off your first order when you sign up on their site.
Read the report first. Then order.
Four lines. Sixty seconds. You will never read a certificate the same way again.
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Comments
I have been looking at the big percentage for years and never once checked the lot number. Went back through my last three orders. Only one matched.
Same. The "one PDF for everything" red flag is real. Saw the exact same report on five different listings once.
Opened a PrimalGenix report before ordering like the article says. Lot number, method, lab, date. All there. Took less than a minute.
Ordered before 2 and it shipped the same day. Vial label matched the report.