Volumes Tested
5mg
Viewing · 6 tests total
10mg
4 tests · latest Jul 2026
Certificate of Analysis
Selank
Batch B2826019 · Tested July 22, 2026 5mg
✓ Third-Party Lab Tested
Independent laboratory testing confirms purity and composition of this batch. Other batches of this product have been endotoxin-tested — see test history.
Sample Summary
Identification and intake details for this tested batch.
Product
Selank
Volume
5mg
Batch / Lot
B2826019
Accession #
2607220964
Test Date
July 22, 2026
Appearance
White Lyophilized Powder
Identity
Confirmed via LC-MS
Purity Analysis
HPLC with UV detection coupled with mass spectrometry (LC-MS)
Purity (HPLC-UV)
99.68%
Identity (LC-MS)
Selank
Net Peptide Content
6.27 mg
Test Method
HPLC with UV detection coupled with mass spectrometry (LC-MS)
What this test measures
High-performance liquid chromatography with UV detection separates the peptide from related impurities and quantifies each fraction. Mass spectrometry confirms molecular identity by measuring the exact mass-to-charge ratio.
FR
Freedom Diagnostics
Full Certificate PDF
Signed laboratory-issued PDF with chromatogram and mass confirmation plots.
Test History for Selank
10 independent lab tests on file for this product.
99.74%
Avg Purity · 10 batches
99.49% – 99.92%
Range
3 on file
Endotoxin Tests
99.74%
Batch B2826020 · 10mg
Jul 22, 2026 · Purity
99.68%
Batch B2826019 · 5mg
Jul 22, 2026 · Purity
99.76%
Batch I2326020 · 10mg
Jul 8, 2026 · Purity + Endotoxin
99.92%
Batch A1226 · 10mg
Jun 12, 2026 · Purity + Endotoxin
99.49%
Batch B2026019 · 5mg
Jun 1, 2026 · Purity
99.71%
Batch A1226 · 5mg
May 13, 2026 · Purity + Endotoxin
99.81%
Batch B0526 · 5mg
Mar 20, 2026 · Purity
99.68%
Batch B0526 · 10mg
Mar 20, 2026 · Purity
99.72%
Batch B0526 · 5mg
Feb 26, 2026 · Purity
99.87%
Batch 19HBE · 5mg
Aug 25, 2025 · Purity
Frequently Asked Questions
Quick references for what each test means.
What is HPLC-UV purity testing?
High-Performance Liquid Chromatography (HPLC) separates the peptide from related impurities based on how strongly each molecule interacts with a chromatographic column. A UV detector quantifies each separated fraction, and the total peptide peak area divided by all peaks yields the purity percentage.
What does LC-MS confirm?
Liquid Chromatography–Mass Spectrometry (LC-MS) confirms the peptide's molecular identity by measuring its exact mass-to-charge ratio. This verifies the peptide is what it claims to be — not a related molecule with a similar chromatographic profile.
Are all my orders from this exact batch?
Not necessarily — batches are rotated as inventory moves. Check the batch code on your vial against the test history above to find the matching certificate. Every batch we sell has been independently tested.
Research Use Only
The peptides tested are intended for research use only and are not approved for human or veterinary use, diagnostic, therapeutic, or clinical applications. Results apply only to the specific sample provided and should be interpreted by qualified professionals within the scope of the intended research.