Cortexin vs Selank-Amidate

A side-by-side comparison from PeptideSciences101, the open peptide reference.

Overview

Cortexin is primarily a sleep & recovery peptide, while Selank-Amidate is used for cognitive enhancement.

This page compares Cortexin and Selank-Amidate across their primary use, typical dosing, reported benefits and side effects, and U.S. regulatory status. For the full monograph on either compound — mechanism of action, clinical research, and references — follow the article links.

Side-by-side comparison

CortexinSelank-Amidate
CategorySleep & RecoveryCognitive Enhancement
Regulatory status (US)Research use onlyResearch use only
Typical dosage10 mg250-500 mcg
Frequencyeveningdaily
Reported benefitsEnhanced sleep quality, neural recovery, stress reductionLonger-lasting anxiety relief, stable mood
Reported side effectsGenerally well-toleratedVery well-tolerated

Key differences

Primary use. Cortexin is categorised under Sleep & Recovery, while Selank-Amidate falls under Cognitive Enhancement. Their differing categories mean they are usually chosen for different goals rather than as direct substitutes.

Regulatory status. Cortexin: not FDA-approved; treated as a research compound. Selank-Amidate: not FDA-approved; treated as a research compound.

Dosing. Cortexin is typically dosed at 10 mg (evening). Selank-Amidate is typically dosed at 250-500 mcg (daily).

Can you stack them?

Some protocols combine peptides, but stacking Cortexin and Selank-Amidate has not been validated for safety or efficacy in controlled trials. Combining compounds can change their effects and risks. Nothing here is medical advice — consult a qualified healthcare provider before starting or combining any protocol.

Frequently asked questions

What is the difference between Cortexin and Selank-Amidate?
Cortexin is primarily a sleep & recovery peptide, while Selank-Amidate is used for cognitive enhancement. Cortexin is not FDA-approved; generally classified as a research compound, whereas Selank-Amidate is not FDA-approved; generally classified as a research compound.
What is Cortexin used for?
Neuropeptide for rest.
What is Selank-Amidate used for?
Extended release Selank.
Can you take Cortexin and Selank-Amidate together?
Some users combine peptides within a single protocol, but stacking Cortexin and Selank-Amidate has not been established as safe or effective in controlled trials. Neither this comparison nor PeptideSciences101 is medical advice — consult a qualified healthcare provider before combining any compounds.
Is Cortexin or Selank-Amidate FDA-approved?
Cortexin is not FDA-approved; generally classified as a research compound. Selank-Amidate is not FDA-approved; generally classified as a research compound.

Read the full articles

  • Cortexin — full monograph: mechanism, research, dosing & references
  • Selank-Amidate — full monograph: mechanism, research, dosing & references

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