Cortagen Powder

Cortagen (chemical name: Ala-Glu-Asp-Pro, abbreviated as AEDP) is a bioregulatory peptide belonging to the Khavinson family, developed by the research team led by Russian scientist Vladimir Khavinson. As a short peptide designed for the targeted epigenetic regulation of the nervous system, its development originated from the analysis of active fragments within Cortexin-a natural extract derived from the cerebral cortex. Standardized production is achieved through solid-phase synthesis techniques; by virtue of its high purity, exceptional stability, and precise targeting capabilities, Cortagen has emerged as a pivotal research tool and key raw material in the fields of neuroscience, the biology of aging, and regenerative medicine.

Xi'an Sonwu Biotech Co., Ltd is a peptide raw material supplier with peptide technology at its core and an international market orientation. Sonwu is dedicated to the R&D, manufacturing, and worldwide distribution of bioactive peptide and polypeptide ingredients. Sonwu's products are widely applied in multiple fields, including muscle building, beauty and anti-aging, hair health, weight management, nootropics, and pharmaceutical raw materials.

Sonwu's products serve a global clientele, supporting both research and development and industrialization projects. Based on this, Sonwu has received a lot of feedback on Sonwu's products. Therefore, if you need cortagen, please contact Xi'an Sonwu.

Xi'an Sonwu not only provides large-scale production services but can also provide sample packages to customers first.

Xi'an Sonwu not only supplies high-quality cortagen, but can also customize products according to customer needs. In addition, Sonwu can provide customized packaging services, including repackaging products according to customer requirements.

1. Customized bottles(size, color, material, style)

2. Customized packaging(vacuum foil packaging, box, drum)

3. Customized label(paint film, matte film, optical mask)

The research and development of Cortagen began with an exploration into the mechanisms of naturally occurring neuroactive substances. Its core lies in a comprehensive technical pipeline encompassing natural sourcing, active screening, chemical synthesis, and standardized mass production.
(I) R&D Background and Technical Origins
Cortagen's precursor, Cortexin, is a crude polypeptide extract derived from animal cerebral cortices. While it contains various amino acid fragments, its complex composition, significant batch-to-batch variability, and unstable biological activity made it challenging to subject to precise scientific investigation or large-scale application. In the late 20th century, the team led by Dr. Khavinson at the St. Petersburg Institute of Bioregulation and Gerontology in Russia utilized amino acid sequencing and active screening techniques to isolate the core active fragment from Cortexin: a linear tetrapeptide composed of alanine, glutamic acid, aspartic acid, and proline (AEDP). This fragment was named Cortagen. By identifying it as the minimal active unit responsible for Cortexin's neuromodulatory effects, the team established the theoretical foundation for its chemical synthesis.
(II) Manufacturing Process and Quality Control
Cortagen is manufactured using Solid-Phase Peptide Synthesis (SPPS) technology, adhering strictly to cGMP (Current Good Manufacturing Practice) standards throughout the entire process. The core manufacturing steps include: amino acid monomer activation → coupling to a solid-phase support → stepwise peptide chain elongation → cleavage and deprotection → purification and lyophilization. This process ensures 100% chemical synthesis, the complete absence of animal-derived ingredients, and a precisely controlled molecular structure. Quality control is implemented through a rigorous three-tier testing system.
(III) Physicochemical Properties and Storage Technology
Cortagen presents as a white to off-white lyophilized powder, characterized by excellent water solubility, low hygroscopicity, and high stability.

The core mechanism of action of Cortagen involves penetrating both cellular and nuclear membranes to target and modulate gene expression within neuronal and immune cells. This process constitutes epigenetic regulation; it does not alter the underlying DNA sequence but rather achieves homeostatic regulation of the neural microenvironment by modulating chromatin states and transcription factor activity-specifically by activating repair pathways while inhibiting damage pathways.
(I) Regulation of Gene Expression: Targeting Neural Repair and Anti-Aging Genes
Cortagen binds to chromatin-associated proteins to modulate the transcription of key genes:
Activation of Neural Regeneration Genes: It upregulates the expression of BDNF, NGF, and NT-3, thereby promoting neuronal dendritic branching and increased synaptic density, while simultaneously enhancing synaptic plasticity.
Inhibition of Apoptosis and Inflammation Genes: It downregulates pro-apoptotic genes and inflammatory cytokines while activating anti-apoptotic genes, thereby reducing neuronal apoptosis and inflammatory damage.
Balancing Oxidative Stress Pathways: It upregulates the expression of SOD and glutathione (GSH) to scavenge oxygen free radicals, inhibit lipid peroxidation, and preserve the integrity of cellular membranes.
(II) Neuro-Immune Modulation: Achieving Bidirectional Homeostasis
Cortagen modulates the expression of immune cell cytokines, balancing pro-immune and immunosuppressive responses to prevent autoimmune-mediated damage to the nervous system. Concurrently, it promotes the myelination of damaged nerve fibers-thereby accelerating the recovery of neural conduction function-and effectively addresses the specific repair requirements associated with both peripheral and central nervous system injuries.

1. Xi'an Sonwu Biotech Co . Ltd has established a complete technology platform covering peptide molecular design, custom synthesis, precision purification, structural identification, and quality control. Strictly adhering to international quality management standards, the company ensures that its peptide raw materials meet the high-end raw material requirements of overseas customers in terms of purity, stability, and batch consistency.

2. Looking to the future, Sonwu will continue to deepen peptide technology innovation, expand Sonwu's global cooperation network, and strive to become a trusted long-term peptide raw material solution partner for international customers.

Besides guaranteeing the product, the most important thing is that customers receive the goods smoothly. So, Xi'an Sonwu offers a range of couriers to meet different needs.

Cortagen possesses an exceptionally high safety profile with minimal side effects. Its core safety characteristics are as follows:
1. Absence of Acute and Chronic Toxicity: It causes no impairment of liver or kidney function, exhibits no organ-specific toxicity, and presents no cumulative toxicity even with long-term administration; furthermore, body weight and physiological parameters remain within normal ranges.
2. Absence of Immunogenicity and Allergic Reactions: As a small-molecule short peptide, it lacks antigenic determinants and does not trigger antibody production. It causes no adverse reactions such as allergies, redness, swelling, or itching, making it suitable for individuals with allergic constitutions.
3. Mild Adverse Reactions (Rare): Transient headaches or mild nausea may occur-rarely-only in cases of excessive dosage or individual hypersensitivity. These symptoms typically resolve spontaneously within 1–2 days after discontinuing use and require no specific medical intervention.
4. Contraindications: The product is contraindicated for pregnant women, breastfeeding mothers, and individuals with severe hepatic or renal insufficiency (due to a lack of definitive safety data). Use in children is not recommended.

If you want to find a cortagen supplier, contact Xi'an Sonwu. Click the email, and then you get high-quality products.

Email: sales02@sonwu.com

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