Proof before you trust
a single vial.
Veridian Diagnostics is an independent laboratory for research compounds. We buy, test, and openly publish purity and quantity so you can verify what is really in the vial.
Independent results in the public record
Verified main peak on a recent tirzepatide lot
Measured against a 10 mg label claim
No vendor pays for a passing grade.
Three steps from a sealed vial to a public result.
We acquire the sample
We buy compounds through ordinary retail channels with no notice to the vendor, or you ship us yours to test for free.
We run the analysis
Mass spectrometry confirms identity, then reverse phase HPLC measures purity and a calibrated method measures the real fill.
We publish openly
Every result lives at a verifiable address with the full trace, so a certificate can never be faked or edited.
Where the best vendors actually rank.
Tirzepatide
176 vendors- 1Inno PeptidesA Great
- 2Paradigm PeptideA Great
- 3HK PeptidesA Great
Semaglutide
57 vendors- 1Jeep BiotechnologyB Good
- 2Limitless LifeB Good
- 3Saiyan MedB Good
Retatrutide
214 vendors- 1Jeep BiotechnologyA Great
- 2Marvel PepB Good
- 3Inno PeptidesB Good
BPC 157
88 vendors- 1Nuscience PeptidesA Great
- 2Amino AmigosA Great
- 3Aavant ResearchA Great
Verify a COA in seconds.
Someone handed you a Veridian certificate. Enter the certificate identifier and read the authoritative result straight from our records.
Send us your sample.
Ship a compound to our lab in Austin, Texas and we will test it for purity and quantity at no cost. You can also request that we source and test a specific vendor.
Unlimited data for researchers.
Open the full database of results, download analytical files, and compare vendors across every compound we cover.
Lead with transparency.
Retail compounds with confidence. Registered vendors earn verifiable certificates and a place in our public rankings.
Notes from the lab.
What a COA Actually Proves, and What It Does Not
A certificate is one data point from one moment in time. Here is how to read it without being misled by it.
12 Jun 2026Underdosing Is the Quiet Failure of the Peptide Market
Purity gets the attention, but our data shows quantity is where buyers lose the most value.
04 Jun 2026How We Source Blind Samples to Keep Vendors Honest
When a vendor knows a sample is headed to a lab, the sample stops being representative. So we buy like a normal customer.
21 May 2026A safer market starts with an honest number.
Browse the results, verify a certificate, or send us a sample. The record stays open to everyone.