About PSL Labs

Research materials should stand on lab reports you can open and check, not on marketing language. We sell synthetic peptides for laboratory research and publish third party lab reports for active batches.

You can review the material identified by the lab, the reported purity, and the amount measured for published batches before you decide whether the material fits your work.

PSL Labs does not create the lab reports shown on the site. Our published reports come from Janoshik Analytical, an independent laboratory.

For our peptide batches, the report shows the material identified by the lab, the reported purity, and the amount measured in the tested sample. Each report also has a task number you can use to open the original report on Janoshik’s website.

The report only covers the tests shown on the original laboratory file.

A report applies to the batch and sample named on that document. It does not cover other batches.

Every product currently for sale has a published batch report. Coming Soon items stay unavailable until testing is finished and published.

We ship from Phoenix, Arizona. Packages are packed to protect vials in normal domestic transit.

Most orders process within 1 to 2 business days after payment clears, with tracking to all 50 U.S. states.

Ask us about batch documents, order status, tracking, or product details.

We do not advise on dosing, human use, or clinical protocols. For order or documentation help, contact us.