Encyclopedia · Brain Health & Nootropics

What Is Neuroxelin? Ingredients, Uses, and Safety

Evidence review

Evidence grade D

Evidence is primarily preclinical and often concerns a related molecule rather than the marketed name itself.

Reviewed Aug 10, 2026 3 linked authoritative sources

Neuroxelin is not one chemical entity or approved medicine. Sellers commonly describe a mixture of PE-22-28, Pinealon/EDR, N-acetyl Semax, and N-acetyl Selank, but the name is not a recognized standard and formulations may vary.

Neuroxelin is a seller-defined blend

Neuroxelin is not one chemical entity or approved medicine. Sellers commonly describe a mixture of PE-22-28, Pinealon/EDR, N-acetyl Semax, and N-acetyl Selank, but the name is not a recognized standard and formulations may vary.

The finished blend has no clinical evidence

PE-22-28 evidence is limited to cells and rodents.[1] Semax and Selank have limited, regionally concentrated human literature, while the N-acetyl variants and Pinealon have separate and weaker evidence. No study has tested the four ingredients together, demonstrated synergy, or established effects on depression, anxiety, memory, cognition, stroke recovery, or neuroprotection.

Psychiatric and neurologic safety is unknown

No blend-specific pharmacokinetics, interactions, adverse-event monitoring, pregnancy evidence, seizure assessment, mood-switch risk, or long-term safety database exists. Mixing four central-nervous-system research compounds makes component-specific findings less—not more—predictive.

Regulatory status

Neuroxelin and its stated components are not FDA-approved as this product. FDA's Semax review and substance records do not constitute approval.[2] Compounded drugs are not premarket-verified for safety, effectiveness, or quality.[3] Teloryx publishes no blend recipe or dose.

Evidence review

Sources and evidence

Citation numbers in the article link to the exact regulator records, trial registrations, and publications reviewed.

  1. Frontiers in PharmacologyShortened spadin analogs including PE-22-28 in cells and mice (2017)
  2. U.S. FDAFDA evaluation of Semax-related bulk drug substances (2026)
  3. U.S. FDAUnderstanding the risks of compounded drugs (2026)