Side-by-Side Comparison · 2026

Adamax vs Neuroxelin

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

Adamax
Cognitive & Neurological

Adamax is a branded formulation of N-Acetyl Semax Amidate, the most potent and longest-acting analog of the nootropic peptide Semax. The N-acetyl modification at the N-terminus and amide modification at the C-terminus together extend its half-life and increase BDNF-stimulating po...

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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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Key Parameters
Parameter Adamax Neuroxelin
Category Cognitive & Neurological Cognitive & Neurological
Research Research Use Vendor Blend
Half-Life ~8–12 hours (extended vs. standard Semax) -
Typical Dose 100–300 µg -
Frequency Once or twice daily -
Route Intranasal Intranasal
FDA Status Not Approved Not Approved

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Frequently Asked Questions
What is the difference between Adamax and Neuroxelin?
Adamax: Adamax is a branded formulation of N-Acetyl Semax Amidate, the most potent and longest-acting analog of the nootropic peptide Semax. The N-acetyl modification at the N-terminus and amide modification ... 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 ...
Which has a longer half-life, Adamax or Neuroxelin?
Adamax half-life: ~8–12 hours (extended vs. standard Semax). Neuroxelin half-life: unknown.
Can you stack Adamax and Neuroxelin?
Adamax and Neuroxelin 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.