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ForumApex Peptides and the North Sioux City search: what's confirmed and what buyers can check· Shop talk · last reply 2 h ago
Cognitive enhancement & neuroprotection

PE-22-28 lab tests

12 certificates of analysis for PE-22-28 are on file, from 10 shops and 4 labs. The latest was tested on .

These are certificates shops have chosen to publish, verified for authenticity before listing. Because shops decide which COAs to make public, the set reflects the batches they published rather than every production batch — a selection bias we state openly. What shop COAs show →

Tests on file
12
all single vials
Median purity
99.68%
usual 99.41–99.88% · shop COAs
Measured vs label
111%
median · 0 under 90% · 3 over 120%
Latest test
4 labs · 10 shops
Look up your vial's lot →PE-22-28 prices →Get a vial tested

What the PE-22-28 record shows

PE-22-28's record holds 12 certificates from 10 shops, tested by 4 labs between January 2026 and September 2026. Reported HPLC purity ran from 99.41% to 99.93% (median 99.68%). Measured content ran from 96% to 126% of the label (median 111%). 11 of the 12 vials were labelled 10 mg. 3 certificates include an endotoxin result, and 11 were confirmed on the lab's own portal. freedomdiagnosticstesting.com ran 9 of the 12 tests.

Generated from the table below · updates with every new certificate

Every published PE-22-28 test

12 · newest first
12 records, most recent first.
TestedShopLabPurityMeasured vs labelEndotoxinRecord
Backroad Aminosfreedomdiagnosticstesting.com99.74%11.63 / 10 mg 116% of labelPass092026PE10✓
Peptide Plugsfreedomdiagnosticstesting.com99.63%9.88 / 10 mg 99% of labelPass135-01-2B✓
Glow AminosILS Laboratories99.85%10.4 / 10 mg 104% of label—GL-010212✓
Peptide Plugsfreedomdiagnosticstesting.com99.72%9.64 / 10 mg 96% of label—129-01-SM✓
BioEdge Research LabsKovera Labs99.63%10.8 / 10 mg 108% of labelPass052626PE28✓
Real Peptidesfreedomdiagnosticstesting.com99.46%9.13 / 8 mg 114% of label—View record →
Polaris PeptidesJanoshik Labs99.48%11.47 / 10 mg 115% of label—POL-PE2810-2✓
PepGenics Researchfreedomdiagnosticstesting.com99.88%12.15 / 10 mg 122% of label—PGR-PE10010226✓
Amino Techfreedomdiagnosticstesting.com99.41%9.81 / 10 mg 98% of label—View record →
Grey Market Peptidefreedomdiagnosticstesting.com99.41%9.81 / 10 mg 98% of label—View record →
PeptideTechfreedomdiagnosticstesting.com99.93%12.61 / 10 mg 126% of label—PE22-2415✓
PeptideTechfreedomdiagnosticstesting.com99.88%12.28 / 10 mg 123% of label—PE22-2410✓

Measured amount in amber when it is under 90% or over 130% of the label; Check label when it is under 80% or over 150%. Records without a lot number link as View →.

Seven checks for any PE-22-28 certificate

  1. Batch-matched and independent. The certificate names the lot in your hands and comes from a lab the vendor neither owns nor pays.
  2. Purity against the range. Read the figure against what other certificates for this compound report. How to read HPLC and mass-spec results
  3. Mass-spec identity. Only mass spectrometry shows which molecule is in the vial.
  4. Net content, measured. Purity and quantity are separate questions. Why 10 mg isn't 10 mg
  5. Endotoxin on the batch. A missing line means not tested, not passed. Endotoxin testing and LAL interpretation
  6. A lab you can check. Named on the certificate, with a way to verify it. Testing labs we track · Red flags in a certificate of analysis
  7. What no test shows. A clean certificate says nothing about efficacy, dosing or long-term safety.
Want a vial tested yourself? How to send a peptide for independent HPLC testing →

Related lab tests

More on PE-22-28

PE-22-28 — compound profilewhat it is, shops, purityPE-22-28 prices$/mg across lab-tested shopsCOA benchmarkswhat shop COAs show and leave outGet a peptide testedlabs, prices, what to orderCheck your viallook up a lot number

Labs with PE-22-28 tests on file (4): freedomdiagnosticstesting.com, ILS Laboratories, Kovera Labs, Janoshik Labs