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P21

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Research Use Only: The statements made within this website have not been evaluated by the US Food and Drug Administration. These materials are not intended to diagnose, treat, cure, or prevent any disease. All products are for laboratory research and development use only, and are not intended for human use.

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Product information

P21 is a synthetic neurotrophic peptide incorporating adamantane modifications investigated for its effects on brain derived neurotrophic factor signaling and neurogenesis pathways in preclinical models.

Molecular Composition and Mechanistic Profile

  • Peptide identity: P21 is a short chain peptide with the sequence Ac DGGLAG NH2.

  • Origin: Designer peptidergic compound engineered with adamantane related elements to enhance stability and neural activity.

  • Mechanistically, P21 has been associated with:

    • Upregulation of BDNF expression and TrkB receptor pathways supporting synaptic plasticity in experimental systems.

    • Promotion of neurogenesis and maturation of new neurons in hippocampal dentate gyrus preparations.

    • Enhancement of learning and memory related markers through CNTF like neurotrophic signaling in laboratory models.

These properties position P21 as a tool for studying neurotrophic support and cognitive pathway modulation.

Integrated Research Applications

P21 is examined across neural systems. Representative domains include:

  • Neurogenesis and plasticity models: Investigation of BDNF TrkB activation and neuronal maturation in rodent hippocampal tissue.

  • Cognitive signaling studies: Evaluation of effects on learning memory and synaptic density markers in animal preparations.

  • Neurodegenerative pathway research: Assessment of impacts on amyloid and tau related processes in transgenic experimental systems.

  • Comparative neurotrophic peptide studies: Use alongside related compounds to isolate adamantane contribution to stability and activity in controlled settings.

Overall, P21 serves as a research tool for exploring peptide mediated neurogenesis and synaptic homeostasis.

Analytical Validation, Formulation, and Storage

NextGenPeps supplies P21 as a high purity research peptide. Typical quality and handling features include:

  • Purity: ≥99% verified by HPLC.

  • Formulation: White lyophilized powder in sealed glass vials, intended for reconstitution with appropriate research grade solvent for experimental use only. No dosing guidance is provided for any organism.

  • Storage: Keep lyophilized material in a cool dark dry environment; long term storage at or below −20 °C. Store reconstituted solutions refrigerated, minimize freeze thaw cycles, and use within laboratory defined stability windows.

These conditions support structural integrity and reproducible experimental outcomes.

NextGenPeps supplies P21 as a high purity research peptide intended strictly for controlled laboratory use in vitro or in established animal models, such as murine systems. This compound is not approved as a drug, diagnostic, or dietary ingredient, and is not manufactured, packaged, or marketed for human consumption, self experimentation, clinical application, or any use outside properly designed and ethically approved research protocols.

Chemical Properties

Molecular FormulaVariable
Molecular Weight2300–2500
Monoisotopic MassVariable
Heavy Atom CountVariable

Common Research Questions

What is P21 peptide?

P21 is a synthetic peptide designed to mimic part of a natural protein called CNTF (ciliary neurotrophic factor), which plays a role in nerve cell growth and survival. Specifically, it's built from a small active region of CNTF (amino acids 148 to 151), with an added modified glycine that helps it cross the blood brain barrier and resist breaking down too quickly in the body. It's mainly researched in the context of brain aging, memory, and neurodegenerative disease in animal models to treat issues like Alzheimer's.

What does P21 do?

What's known about P21 comes from animal studies looking at brain aging and memory. In mouse models of Alzheimer's disease, chronic treatment with P21 helped restore normal patterns of new neuron growth, brain cell connections, and cognitive performance, and it also reduced a harmful buildup of tau protein linked to Alzheimer's. Part of how it's believed to work involves boosting a molecule called BDNF, which supports the survival and growth of brain cells. BDNF is a key protein that supports neuron survival, the branching of nerve cell connections, and the brain's ability to form and strengthen memories.

What is a similar peptide to P21?

The most common comparison is Semax, since both are popular research peptides aimed at memory and cognitive support in animal models, though they work differently. Semax is based on a fragment of ACTH and works through a broader neuroprotective effect on BDNF, while P21 works more specifically by directly mimicking CNTF to trigger new neuron growth in the hippocampus. Cerebrolysin also comes up often in comparisons, partly because P21 is sometimes mistakenly thought to be based on Cerebrolysin, when it's actually built from CNTF, with Cerebrolysin research simply being what led scientists to CNTF in the first place.

Frequently Asked Questions

How is P21 packaged?

P21 is supplied in the product format and quantity shown for the selected variant. Please inspect the sealed package when it arrives and contact support promptly if the package or labeling appears damaged.

How is P21 shipped?

Orders are shipped within the United States via USPS. Transit times are typically 3–7 business days, depending on destination and carrier conditions. Tracking information is provided when available.

How should P21 be stored?

Storage requirements are product-specific. Keep P21 in its original labeled container and follow the product documentation or manufacturer instructions supplied with the order. Contact support if the applicable storage guidance is not available.

What is the refund policy for P21?

Due to the nature of research materials, NextGenPeps orders are final and are not eligible for refunds, returns, or exchanges. Review the shipping and reship policies before ordering.

Is P21 intended for human use?

No. NextGenPeps materials are supplied strictly for laboratory research and development use and are not intended for human or animal consumption, clinical use, diagnostic use, cosmetic use, or dietary use.

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The statements made within this website have not been evaluated by the US Food and Drug Administration. The materials offered by this company are not intended to diagnose, treat, cure, or prevent any disease. All research materials on this site are for laboratory research and development use only, and are not intended for human use.

NextGenPeps is a chemical supplier. NextGenPeps is not a compounding pharmacy or chemical compounding facility as defined under 503A of the Federal Food, Drug, and Cosmetic act. NextGenPeps is not an outsourcing facility as defined under 503B of the Federal Food, Drug, and Cosmetic Act.

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