Every batch ships with a lot-matched Certificate of Analysis · Same-day processing before cut-off

Third-party verified

Every batch.
Every test.
Published.

We publish our lab work in full. Every certificate we receive from an independent laboratory appears here, with purity, laboratory, batch number and test date.

1
Certificates
1
Compounds
1
Labs
≥99%
Purity floor
Our process

How a vial earns its certificate.

01

Source

Material comes from qualified synthesis partners and arrives sealed and lot-tracked, with the supplier’s own documentation.

02

Sample

A vial is drawn from each batch and sent to an independent laboratory. We never certify our own product.

03

Verify

The laboratory runs HPLC and reports purity and batch number on a signed document, which we publish here in full.

Tested by

Accredited independent laboratories

Sample Laboratory
The library

Browse every certificate.

1 compounds · 1 batches

99.50% purityGHK-Cu50 mg
Lab
Sample Laboratory
Batch
TEST-01
Tested
Nov 9, 2026
Common questions

What researchers ask before they trust a certificate.

A signed document from an independent laboratory recording what it measured in a sample from a specific batch: the compound identified, the purity measured, the method used and the date of analysis. It is issued by the laboratory, not by the seller.

It means the laboratory’s analysis found the target compound at 99% or more of the measured sample, with no other component above 1%. Batches that do not meet our purity floor are not released for sale.

Every batch. Each new batch is sampled and sent for independent analysis, and its certificate is published here before the batch is released.

Yes. Match the batch number on your vial label to the batch number on the certificate in the library above. If you can’t find it, contact us with the batch number and we’ll send you the matching certificate.

Don’t see your batch?

Send us the batch number on your vial and we’ll send you the matching certificate.