Head to head
Cerebrolysin against Cortexin
Two brain-derived peptide mixtures used in the same clinical settings in the same countries. Neither is a defined single molecule, which is the central difficulty in reading either literature, and Cerebrolysin has by far the larger trial record.
Column A
CerebrolysinCerebrolysin (porcine brain-derived neuropeptides)
A standardized mixture of neuropeptides used clinically in many countries for stroke, dementia, and TBI.
Column B
CortexinCortexin (polypeptide brain preparation)
A mixture of low-molecular-weight brain peptides used in Russia for stroke, brain injury, and cognitive disorders.
Side by side, on the facts we can check
| Attribute | Cerebrolysin | Cortexin |
|---|---|---|
| Category | Nootropic & CNS | Nootropic & CNS |
| FDA status | Not FDA-approved (approved in 30+ countries) | Not FDA-approved (used clinically in Russia and nearby countries) |
| Half-life | Varies by fraction | Varies (mixture) |
| Molecular weight | Mixture (<10 kDa peptides) | Mixture of brain-derived polypeptides, so no single molecular weight; the manufacturer describes a low-kilodalton fraction |
| Mechanism | Its neuropeptide fractions mimic neurotrophic factors such as BDNF and NGF and activate neuroprotective signaling pathways in the brain. | Provides a mix of neuropeptides proposed to support neurotrophic signaling and neuroprotection in the brain. |
| Human studies cited | 1 | 1 |
| Legal status, US | Not approved | Not approved; research use only |
Frequently asked questions
What is the difference between Cerebrolysin and Cortexin?
Cerebrolysin: A standardized mixture of neuropeptides used clinically in many countries for stroke, dementia, and TBI. Cortexin: A mixture of low-molecular-weight brain peptides used in Russia for stroke, brain injury, and cognitive disorders.
Which has stronger research evidence, Cerebrolysin or Cortexin?
This database does not grade compounds. It counts what was run in people: 1 of the 3 studies cited on the Cerebrolysin profile were human work, against 1 of 3 for Cortexin. Those counts are of our own citation lists and understate any larger literature, and neither is a recommendation.
Are Cerebrolysin and Cortexin FDA-approved?
Cerebrolysin: Not FDA-approved (approved in 30+ countries). Cortexin: Not FDA-approved (used clinically in Russia and nearby countries).
Reviewed Sep 2026. This page sets two published records side by side. It is educational, it is not medical advice, and it contains no dosing protocols or recommendations for personal use.