Vendor and compound
PE-22-28 from Simple Peptide
Simple Peptide lists PE-22-28 at $7.20 per mg, 38% over the $5.20 peer median. No third-party certificate for PE-22-28 from Simple Peptide has been located, so nothing here establishes what is in the vial. The cheapest listed price for PE-22-28 anywhere in the index is $3.46 per mg at Polaris Peptides.
All PE-22-28 vendors · Simple Peptide profile · scores 84.9 of 100, rank 10 · 0 certificates for this compound · verified 28 Sept 2026
What it costs
| Vial | Listed price | Per mg | vs peer median | Listing |
|---|---|---|---|---|
| 10 mg | $72 | $7.20 | +38% | PE-22-28 10mg |
Read from the vendor’s own store and normalised per milligram, because a smaller vial at a lower sticker price is usually the dearer peptide.
What the laboratory found
No third-party certificate for PE-22-28 from Simple Peptide has been located.
That is a statement about the public record, not an accusation. The vendor may test and not publish, or publish somewhere we have not read. What it means for a buyer is that the price above is the only thing established here, and price says nothing about what is in the vial.
Vendors whose certificates you can check yourself lists the ones where that gap is closed.
Other vendors selling PE-22-28
| Vendor | Score | Per mg | Certificates for this compound |
|---|---|---|---|
| Modern Aminos | 88.1 | $5.40 | 0 |
| Polaris Peptides | 86.6 | $3.46 | 0 |
| PeptidePlugs | 86.3 | $4.00 | 0 |
| GenX Peptides | 69.2 | $5.00 | 0 |
| Biotech Peptides | 65.7 | $6.88 | 0 |
Ordered by overall evidence score. See every vendor listing PE-22-28.
Questions
Is PE-22-28 from Simple Peptide third-party tested?
Not so far as this index can establish. No third-party certificate for PE-22-28 from Simple Peptide has been located. The vendor may test and not publish; what can be said is that nothing public establishes the contents of a vial.
How much does PE-22-28 cost at Simple Peptide?
$7.20 per milligram, from 10 mg at $72. The peer median across every vendor we price for PE-22-28 is $5.20 per mg, so this is +38% against the market. Prices are normalised per milligram so vials of different sizes compare fairly.
Is Simple Peptide a good place to buy PE-22-28?
Simple Peptide scores 84.9 of 100 on the published rubric and ranks 10 overall, computed from its documentation rather than from opinion. For PE-22-28 specifically no certificate is on file, which is the gap to weigh. Polaris Peptides lists it cheaper at $3.46 per mg.