PE-22-28 10 mg – Neurotrophic Research Peptide
PE-22-28 is a synthetic heptapeptide fragment derived from spadin (the sortilin propeptide), originally identified by researchers studying TREK-1 potassium channel modulation. TREK-1 is a two-pore domain potassium channel expressed throughout the CNS that has been implicated in neurogenesis, mood regulation, and neuroprotection.
Research Background
TREK-1 channel inhibition – PE-22-28 acts as a selective inhibitor of the TREK-1 potassium channel. TREK-1 knockout models show enhanced neurogenesis and resistance to depression-like behaviours, suggesting that TREK-1 inhibition promotes neurotrophic signalling.
Neurogenesis – Research indicates PE-22-28 may promote hippocampal neurogenesis by increasing BDNF expression and enhancing neural progenitor cell proliferation, potentially through TREK-1-mediated signalling cascades.
Cognitive research – PE-22-28 has been studied in cognitive performance models, where it has shown effects on learning, memory consolidation, and synaptic plasticity.
Related Products
For complementary nootropic research, see Semax (BDNF upregulation), Selank (anxiolytic nootropic), and P-21 (neurogenesis). Browse Cognitive & Nootropic.
For research use only. Not for human or veterinary consumption.




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