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TESTING & QUALITY

Tested by a lab we don't own.

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.

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

Published batch reports

Original third party lab reports for batches currently for sale. Results apply to the sample and batch named on each report. View Batch Reports →

Product
Retatrutide
Batch
Black Top
Task Number
199788
Testing Laboratory
Janoshik
Analysis Date
July 8, 2026
Reported Amount
13.03mg
Reported Purity
99.805%
Status
Report Available
View Report

Laboratory results apply only to the tested sample and batch identified above.

Product
GHK-Cu
Batch
PSL-GHKCU-50MG
Task Number
226454
Testing Laboratory
Janoshik
Analysis Date
September 3, 2026
Reported Amount
53.21mg
Reported Purity
99.735%
Status
Report Available
View Report

Laboratory results apply only to the tested sample and batch identified above.

Product
Tesamorelin
Batch
PSL-TESA-10MG
Task Number
226457
Testing Laboratory
Janoshik
Analysis Date
September 3, 2026
Reported Amount
9.91mg
Reported Purity
97.781%
Status
Report Available
View Report

Laboratory results apply only to the tested sample and batch identified above.

Product
Reconstitution Solution
Batch
PSL-RS-5ML
Task Number
226455
Testing Laboratory
Janoshik
Analysis Date
September 3, 2026
Benzyl Alcohol
9.00 mg/ml
Status
Report Available
View Report

Laboratory results apply only to the tested sample and batch identified above.

Product
BPC-157
Batch
PSL-BPC157-10MG
Task Number
226456
Testing Laboratory
Janoshik
Analysis Date
September 4, 2026
Reported Amount
11.75mg
Reported Purity
99.748%
Status
Report Available
View Report

Laboratory results apply only to the tested sample and batch identified above.

What the lab report shows

Our published peptide reports come from Janoshik Analytical, an independent lab. The report shows three main results. Each one answers a different question.

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

Identity

What material did the lab identify?

The report shows whether the tested sample matches the expected compound.

Purity

How clean did the sample look in the lab's purity test?

The report gives a purity percentage for the tested sample.

Amount

How much material did the lab measure?

The report shows how much target material was measured in the tested sample. For a solution, it may show concentration instead.

How we publish batch reports

1. Active products have published reports. If a product is available to buy, its current batch report is already published in Batch Reports.

2. Results apply to that batch.The report covers the batch and sample the lab tested. We do not reuse one batch's numbers for a different batch.

3. Coming Soon stays unavailable. Items marked Coming Soon are not for sale until the report is published.

4. You can check the original file. Each report includes a Janoshik task number. Open the original on verify.janoshik.com.

Identity

Identity testing helps confirm what material the lab identified in the tested sample. Look for this on the original report when it is published.

Purity

Purity describes how clean the sample looked in the lab's purity test. If a purity percentage appears on the report, it applies to that tested sample and test method only.

Amount

Amount testing shows how much target material the lab measured in the tested sample. For a solution, the report may show concentration instead.

Batch documentation

Each published report is tied to a specific batch. You can review the lab report for that batch, not a generic product claim.

Reading a COA

A Certificate of Analysis summarizes what the lab reported for the named sample. Use it as lab documentation, not as medical or usage advice.

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