Side-by-Side Comparison · 2026

Neuroxelin vs PE-22-28

Neuroxelin vs PE-22-28 — mechanism, half-life, dosing, and research status compared. Which is right for your protocol?

Neuroxelin
Cognitive & Neurological

Neuroxelin is a vendor nootropic peptide blend containing PE-22-28 (10 mg), Pinealon (10 mg), N-Acetyl Semax (20 mg), and N-Acetyl Selank (8 mg), formulated for intranasal administration. It combines four cognitively-active peptides targeting different aspects of brain performanc...

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PE-22-28
Cognitive & Neurological

PE-22-28 is a synthetic fragment of spadin (a naturally occurring peptide derived from the NTSR3/sortilin propeptide) that antagonizes TREK-1, a two-pore domain potassium channel (K2P channel) that regulates neuronal excitability. TREK-1 is strongly implicated in depression and c...

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Key Parameters
Parameter Neuroxelin PE-22-28
Category Cognitive & Neurological Cognitive & Neurological
Research Vendor Blend Preclinical
Half-Life - -
Typical Dose - 100–200 µg
Frequency - Daily
Route Intranasal Subcutaneous / Intranasal
FDA Status Not Approved Not Approved

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Frequently Asked Questions
What is the difference between Neuroxelin and PE-22-28?
Neuroxelin: Neuroxelin is a vendor nootropic peptide blend containing PE-22-28 (10 mg), Pinealon (10 mg), N-Acetyl Semax (20 mg), and N-Acetyl Selank (8 mg), formulated for intranasal administration. It combines ... PE-22-28: PE-22-28 is a synthetic fragment of spadin (a naturally occurring peptide derived from the NTSR3/sortilin propeptide) that antagonizes TREK-1, a two-pore domain potassium channel (K2P channel) that re...
Which has a longer half-life, Neuroxelin or PE-22-28?
Neuroxelin half-life: unknown. PE-22-28 half-life: unknown.
Can you stack Neuroxelin and PE-22-28?
Neuroxelin and PE-22-28 are in the same category and used together in research protocols. Always consult relevant literature and follow appropriate guidelines.

For research use only. Not medical advice. ASCEND does not conduct or endorse any specific research protocol. Always consult relevant scientific literature and regulatory guidelines.