PE-22-28
Also known as: PE 22-28
PE-22-28 is a 7-amino-acid synthetic analog of spadin, a peptide fragment (residues 22-28) of the 44-aa propeptide (PE) released during post-translational maturation of sortilin (the neurotensin receptor-3). It is studied in preclinical models as a fast-acting antidepressant that works by selectively blocking the TREK-1 two-pore potassium channel. There is no established use for hair growth — that is a separate compound and the two should not be confused.
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COAs for PE-22-28
5 third-party tests across 3 vendors. Each card links to the full report.
For
PE-22-28
by Peptidegurus· batch Jan 12nd 2026
For
PE-22-28
by Ascension Peptides· batch 41-06250728
For
PE-22-28
by Ascension Peptides· batch 41-06250728
For
PE-22-28
by Skye Peptides· batch PE25-08-001
Purity not on file
For
PE-22-28
by Skye Peptides· batch PE25-10-001