PE-22-28

PE-22-28 is a synthetic peptide derived from spadin, a fragment of the sortilin propeptide, engineered as a shortened analog for research use.

It is used as a neuropeptide research tool in preclinical neuroscience studies of ion-channel signaling.

It is anecdotally reported in neuroscience-minded biohacking circles for its rapid antidepressant-like and neuroplasticity-promoting potential, tied to its action on the TREK-1 potassium channel.

PE-22-28 is a spadin-derived peptide reputed among researchers and biohackers for its purported fast-acting, antidepressant-like effects. Much of the interest centers on its blockade of the TREK-1 potassium channel, a target that studies link to mood regulation, neurogenesis, and synaptic plasticity — keywords that dominate discussion of next-generation antidepressant research.

It is popularly associated with promoting neuroplasticity and hippocampal neurogenesis, and preclinical models are being explored for mood, resilience, and recovery from chronic stress. Users frame it as an experimental compound in the emerging antidepressant-peptide space.

These reflect areas of active or preclinical investigation and community interest, not outcomes established in humans.

In rodent-model and cell-based research, investigators have examined PE-22-28 as a modulator of the TREK-1 two-pore potassium channel and related neuronal signaling.

These are laboratory observations in animal models and cell systems, not effects shown in humans.

PE-22-28 arrives as a lyophilized powder and is stored at -20°C in a sealed, light-protected container.

For research use it is reconstituted with bacteriostatic or sterile water, then held at 4°C for short-term work or aliquoted at -80°C for extended storage. Each lot includes an HPLC certificate of analysis.