Description
What Is Cortagen Peptide?
Cortagen peptide is a synthetic tetrapeptide bioregulator with the amino acid sequence Ala-Glu-Asp-Pro (AEDP), developed by Professor Vladimir Khavinson at the St. Petersburg Institute of Bioregulation and Gerontology. Cortagen targets central nervous system (CNS) tissue, functioning as a CNS bioregulator that tunes gene expression in cerebral cortex neurons, glial cells, and supporting neural tissue. It belongs to the Khavinson bioregulator peptides class — short control peptides that show tissue-specific gene expression tuning at natural levels — and has been studied in lab models of age-related cognitive decline, nerve damage, and brain safety.
Among the Khavinson bioregulator peptides, cortagen addresses one of the most key and hard-to-target organ systems: the aging brain. The blood-brain barrier severely limits the supply of conventional brain-safe compounds to CNS tissue. Short bioregulator peptides like cortagen offer a research advantage due to their low cell-level weight and capacity to cross natural barriers more readily than large-molecule therapeutics. PrymaLab Cortagen 20mg is manufactured to high purity standards and supplied exclusively for qualified lab research.
Cortagen 20mg: Key Specifications
| Specification |
Detail |
| Compound |
Cortagen (tetrapeptide bioregulator) |
| Sequence |
Ala-Glu-Asp-Pro (AEDP) |
| Quantity |
20mg |
| Target Tissue |
Central nervous system (cerebral cortex, neurons, glial cells) |
| Class |
Khavinson bioregulator peptide (short control peptide) |
| Purity |
≥98% (HPLC-verified per batch) |
| Testing |
HPLC, mass spectrometry, identity check |
| Form |
Freeze-dried powder |
| Storage |
Store at −20°C desiccated; protect from light |
| Intended Use |
Lab research only — not for human or veterinary treatment use |
How Cortagen Works: Bioregulator Mechanism of Action
Cortagen operates through the Khavinson epigenetic bioregulation mechanism — direct interaction with paired DNA sequences in the promoter regions of CNS-specific genes governing neuronal survival, synaptic plasticity, neurotransmitter synthesis, and glial cell support functions.
Neuronal Gene Expression Modulation
Research from the Khavinson group shows that cortagen tunes the expression of genes key to neuronal function, including genes encoding brain-derived neurotrophic factor (BDNF), nerve growth factor (NGF), synaptic vesicle proteins, and neurotransmitter synthetic enzymes. In aged brain tissue models, cortagen use was linked with restoration of neuronal gene expression profiles toward patterns characteristic of younger, functionally competent neural tissue. This gene-level normalization mechanism is distinct from conventional nootropic compounds that tune receptor activity or neurotransmitter reuptake.
Neuroprotection and Neuronal Survival
Cortagen has been studied for its effects on neuronal survival pathways, including anti-apoptotic gene expression (Bcl-2 family), antioxidant defense enzyme expression (superoxide dismutase, catalase, glutathione peroxidase), and energy-cell function genes in neural tissue. These brain-safe gene expression effects are very relevant in models of age-related neurodegeneration, where oxidant stress and energy-cell dysfunction drive progressive neuronal loss.
Glial Cell Support and Neuroinflammation
Beyond direct neuronal effects, cortagen research includes its tuning of glial cell gene expression — very astrocyte and microglial start patterns that add to neuroinflammation in aging brain tissue. Chronic low-grade neuroinflammation (neuro-inflammaging) driven by over-started microglia is a major contributor to age-related cognitive decline and neurodegenerative pathology. Cortagen’s tuning of microglial start gene expression represents a bioregulatory approach to this central aging mechanism.
Cortagen Peptide Benefits: What Research Shows
The following reflects published lab and gerontological literature. PrymaLab Cortagen 20mg is supplied exclusively for research purposes.
Cognitive Function in Aging Models
Published research from the Khavinson program reports that cortagen use in aged animal models was linked with improved cognitive function indices, including enhanced performance on spatial memory tasks (Morris water maze), improved associative learning, and preserved working memory capacity compared to untreated age-matched controls. These cognitive gains correlated with restored neuronal gene expression profiles in hippocampal and cortical tissue.
Nerve Damage and Repair Models
Cortagen peptide benefits have been studied in experimental nerve damage models, including peripheral nerve injury, spinal cord compression, and excitotoxic neuronal damage paradigms. Lab data shows enhanced neuronal survival, improved axonal regrowth markers, and accelerated functional healing in cortagen-treated animals. These findings position cortagen as a research compound of interest in neurological repair models where gene expression normalization may support endogenous repair mechanisms.
Anti-aging Neuroprotection
In gerontological models, cortagen has been studied alongside other Khavinson bioregulators for its contribution to multi-system anti-aging protocols. Published data from longitudinal animal studies shows that cortagen-treated cohorts kept neurological function parameters at ages where untreated controls showed major cognitive and motor decline, supporting the bioregulation hypothesis that short peptides can tune the rate of CNS aging.
Cortagen vs. Vesilute: Neuroprotective Bioregulator Comparison
| Feature |
Cortagen (AEDP) |
Vesilute (KED) |
| Sequence |
Ala-Glu-Asp-Pro |
Lys-Glu-Asp |
| Brain-safe Mechanism |
Direct neuronal: gene expression in neurons and glia |
Indirect vascular: cerebrovascular endothelial support |
| Main Target |
Cerebral cortex, neurons, glial cells |
Vascular endothelium, bladder smooth muscle |
| BDNF/NGF Effects |
Direct tuning of neurotrophic factor gene expression |
Indirect via improved cerebral blood flow |
| Best For |
Neuronal aging, nerve damage, cognitive decline models |
Cerebrovascular aging, vascular brain safety models |
| Combined Use |
Paired: direct + vascular brain safety |
Paired: vascular + direct brain safety |
How to Store and Handle PrymaLab Cortagen 20mg
- Store freeze-dried at −20°C. Keep sealed, desiccated, and protected from light. Stable for 24+ months.
- Allow vial to reach room heat before opening to prevent condensation.
- Reconstitute with appropriate sterile solvent. Add slowly along vial wall.
- Use mixed solution within 2–4 weeks. Refrigerate at 2–8°C.
- Avoid repeated freeze-thaw cycles. Aliquot into single-use portions.
- Retain the Certificate of Test for lot traceability.
Why Choose PrymaLab Cortagen 20mg?
PrymaLab supplies Cortagen 20mg as a high-purity research-grade bioregulator peptide verified at ≥98% purity by reverse-phase HPLC and identity-confirmed by mass spectrometry. Each batch ships with a unique lot number and Certificate of Test. Independent third-party testing ensures unbiased quality check and full traceability for GLP-compliant research.
Frequently Asked Questions About Cortagen Peptide
What is cortagen peptide and what does it target?
Cortagen is a synthetic tetrapeptide bioregulator (Ala-Glu-Asp-Pro, AEDP) developed by Professor Khavinson targeting the central nervous system. It tunes gene expression in cerebral cortex neurons, glial cells, and supporting neural tissue. Research uses include cognitive aging, nerve damage repair, and brain safety in lab gerontology models.
What are the reported cortagen peptide benefits?
Published research reports cortagen peptide benefits including improved cognitive function in aged animal models (spatial memory, associative learning), enhanced neuronal survival in nerve damage paradigms, restored neurotrophic factor expression (BDNF, NGF), reduced neuroinflammatory markers, and kept neurological function in longitudinal aging studies. All reported benefits are from lab research.
How does cortagen differ from other neuroprotective compounds?
Cortagen operates through epigenetic gene expression tuning rather than receptor agonism or neurotransmitter reuptake change. This means it targets the transcriptional programs governing neuronal function rather than acutely tuning synaptic signaling. Among Khavinson bioregulators, cortagen provides direct neuronal effects paired to vesilute’s indirect cerebrovascular brain safety.
How should cortagen be stored?
Store freeze-dried cortagen at −20°C, desiccated and protected from light, for 24+ months shelf life. After mixing, store at 2–8°C and use within 2–4 weeks. Aliquot to avoid freeze-thaw cycles.
What testing standards apply?
PrymaLab Cortagen 20mg is verified at ≥98% purity by reverse-phase HPLC and identity-confirmed by mass spectrometry. Independent third-party testing with batch-specific Certificate of Test ensures quality and traceability.
Research Disclaimer
For Research Use Only. PrymaLab Cortagen 20mg is intended exclusively for qualified lab research use. This product is not intended for human consumption, treatment use, veterinary treatment, or any use outside controlled research environments. Cortagen has not been approved by the FDA or any equivalent control authority for treatment use. All research uses described are from published lab and gerontological literature. Researchers are responsible for control compliance.
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