Quick answer: PE-22-28 is a synthetic peptide analog studied in neuroscience research as a TREK-1 potassium channel blocker, investigated for its mechanism in laboratory and animal models.
PE-22-28 is a newer name in neuroscience research, and it does not have the search volume or the long paper trail of the older peptides. That makes it one of the harder compounds to source with confidence. When a compound is niche, there are fewer vendors carrying it and fewer showing real documentation, so the paperwork matters more, not less.
Here is what it actually is.
What PE-22-28 is
PE-22-28 is a synthetic peptide analog. In the literature it is studied as a TREK-1 potassium channel blocker, which describes the mechanism researchers use it to investigate in laboratory and animal neuroscience work. That channel-blocking role is what defines the compound and why it appears in the research it does.
The caveat is the important part. PE-22-28 has been studied in laboratory and animal models. Those findings are not confirmed in humans. It is a research-use-only compound, not for human or veterinary use.
Where it fits in research
PE-22-28 belongs to the group of neuropeptides that researchers study for their action on specific channels and pathways in the nervous system. It sits near other neuro and sleep research compounds like DSIP, the delta sleep-inducing peptide, in the sense that both are studied for their activity in the central nervous system rather than the periphery.
That is a statement about the research category, not about any effect in a person.
How to source PE-22-28
With a niche compound, a clean source is worth more than a cheap one. Look for a per batch Certificate of Analysis you can read before you buy, HPLC purity on the specific lot, mass spectrometry confirmation, and a lot number tied to your vial.
Peptide Hackers carries PE-22-28 with that documentation on every batch, tested through Janoshik at HPLC verified purity of ninety nine percent or higher. For researchers in Los Angeles and Orange County, you can order online and pick it up the same day in person, with shipping available if you prefer delivery.
If you want to work with a niche peptide, start by reading the COA.
All products are for laboratory research only. Not for human or veterinary use.
Research Use Only
This article is provided for educational purposes. All peptides discussed are sold for research use only and are not intended for human consumption or therapeutic use.