How a lot is tested
From ReVia
What happens to a lot
Before a lot ships, it goes to an independent lab in the United States. The lab reports four things on one page:
Identity: is the material the peptide on the label?
Quantity: how many milligrams are actually in the vial, against what the label says.
Purity: how much of the material is the named peptide, measured by reversed-phase HPLC with UV detection.
Heavy metals: tested against a limit of 50 parts per billion.
The certificate shows the lot code, the date the sample arrived, the date it was run, the chromatogram, the chemist’s name, and an access code. Type that code into the lab’s verification page and the lab’s own database returns the same certificate.
If a lot fails, it doesn’t ship. If we change a method, the next certificate says so.
One certificate, line by line
COA #33593 — Sermorelin 10 mg. Sample received March 27, 2026, analyzed March 28, 2026.
- Laboratory
- Chromate, verify portal at chromate.org/verify
- Product and lot code
- Sermorelin 10 mg, [lot code]
- Method
- Qualitative and quantitative analysis by RP-HPLC with UV detection (220 nm)
- Identity
- Sermorelin, conforms
- Quantity
- 11.36 mg found against 10 mg labeled (+13.6%), conforms
- Purity
- 98.028% against a >98% specification, conforms
- Metals
- Below 50 ppb, against a <50 ppb limit, conforms
- Signed
- Lucas Weber, Principal Chemist; produced March 29, 2026
The standard we publish
What every certificate tells you.
Every certificate reports the same four results, run by the same method at the same independent lab, and it names the lot they were run on. The number that counts is the one on the certificate for your lot, and you can check it yourself.
- Laboratory
- ChromateIndependent, named on every certificate
- Method
- RP-HPLC with UV detectionThe one method we use, printed on every certificate
- Purity specification
- >98%The certificate shows the measured number for your lot
- Heavy metals
- <50 ppbLimit, tested on every lot
Reported on every certificate
- Identity Is it the peptide on the label?
- Quantity How many milligrams are in the vial
- Purity How much of the material is the named peptide (spec >98%)
- Metals Heavy metals against a <50 ppb limit
How to buy in this category
Four questions to ask anyone selling you a peptide.
Including us. None of them require you to trust a brand. Each one is either answered on a document or it isn’t answered at all.
01 Ask for the certificate before you buy
You want the actual document, with the lot number on it, for the lot that's on the shelf right now. If a supplier can't produce that, they're asking you to take their word for it.
02 Make sure the lot on the paper is the lot in the box
A certificate for some other lot tells you nothing about the one you're holding. The lot number is on the vial and on the certificate. They should match.
03 Find out who ran the test
The lab should be named and the method should be stated. Ours is Chromate, running RP-HPLC with UV detection. "Third-party tested" with no lab name is a claim you can't check.
04 Read what was tested, and notice what wasn't
A certificate only covers the tests that were actually run. If a test isn't listed, it wasn't done, and a missing result is not a pass. A long list of tests nobody ran is a common way to look thorough.
Run this on anyone
Seven questions, each with an answer you can check.
- A certificate for this lot, linked from the product page
- A verification code that pulls the certificate from the lab’s own site
- The lab named on the certificate
- Identity, quantity, purity, and metals, each with a limit and a result
- A chemist’s signature and the test dates
- Finished and tested in the United States
- The supplier’s name on the docket of the July 2026 FDA hearing
That last one can’t be bought. Our founder is on the docket of the FDA Pharmacy Compounding Advisory Committee, July 23–24, 2026, and everything he said there is published here in full.