Cortexin vs Selank
Overview
Cortexin and Selank are both cognitive enhancement peptides, but they differ in mechanism, dosing, and regulatory status.
This page compares Cortexin and Selank 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
| Cortexin | Selank | |
|---|---|---|
| Category | Cognitive Enhancement | Cognitive Enhancement |
| Regulatory status (US) | Research use only | Research use only |
| Typical dosage | 10 mg | 250-500 mcg |
| Frequency | daily for cycles | daily |
| Reported benefits | Neuroprotection, cognitive enhancement, recovery support | Anxiety reduction, improved focus, mood stabilization, immune modulation, stress management |
| Reported side effects | Generally well-tolerated | Very well-tolerated. Rare: mild drowsiness |
Key differences
Primary use. Cortexin is categorised under Cognitive Enhancement, while Selank falls under Cognitive Enhancement. Because they target a similar goal, they are common alternatives to weigh against each other.
Regulatory status. Cortexin: not FDA-approved; treated as a research compound. Selank: not FDA-approved; treated as a research compound.
Dosing. Cortexin is typically dosed at 10 mg (daily for cycles). Selank is typically dosed at 250-500 mcg (daily).
Can you stack them?
Some protocols combine peptides, but stacking Cortexin and Selank 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?
- Cortexin and Selank are both cognitive enhancement peptides, but they differ in mechanism, dosing, and regulatory status. Cortexin is not FDA-approved; generally classified as a research compound, whereas Selank is not FDA-approved; generally classified as a research compound.
- What is Cortexin used for?
- Neuropeptide complex.
- What is Selank used for?
- Anxiety reduction, focus.
- Can you take Cortexin and Selank together?
- Some users combine peptides within a single protocol, but stacking Cortexin and Selank 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 FDA-approved?
- Cortexin is not FDA-approved; generally classified as a research compound. Selank is not FDA-approved; generally classified as a research compound.