P21 Peptide
$97.00
High-purity P21 peptide designed for advanced neurotrophic signaling and neurogenesis research. P21 (also known as P021), a synthetic tetrapeptide mimetic derived from ciliary neurotrophic factor (CNTF), is widely used in scientific studies exploring hippocampal neurogenesis, synaptic plasticity mechanisms, and modulation of neurodegenerative pathways in preclinical models.
Discount per Quantity
| Quantity | 5 – 9 | 10 + |
|---|---|---|
| Discount | 5% | 10% |
| Price | $92.15 | $87.30 |
Orders over $200: FREE USPS Priority shipping.
- >99% purity — HPLC + MS verified
- Cold-pack insulated mailers
- Discreet US shipping (2–5 days)
- COA available on request
Research Use Only. Not for human consumption. Sold strictly for laboratory and research use.
P21 is a synthetic small-molecule peptide analog extensively used in pre-clinical research to investigate CNTF-like neurotrophic effects, brain-derived neurotrophic factor (BDNF) upregulation, tau hyperphosphorylation inhibition, and adult hippocampal neurogenesis. This research-grade peptide is produced under stringent GMP-compliant conditions and provided as a lyophilized powder to ensure superior purity, stability, and reliability in experimental applications.
Engineered solely for preclinical investigations, each batch of P21 undergoes a comprehensive quality assessment and includes complete documentation, including a Certificate of Analysis (COA), purity data, and structural verification.
Scientific Overview
P21 functions as a CNTF-derived mimetic that influences neurotrophic pathways without the immunogenicity or side effects of full-length CNTF in research settings. Preclinical investigations demonstrate P21’s potential effects in the following areas:
- Enhancement of dentate gyrus neurogenesis and maturation of newborn neurons
- Upregulation of BDNF expression and synaptic plasticity markers
- Modulation of GSK-3β activity to reduce tau hyperphosphorylation
- Investigation of cognitive and mnemonic endpoints in preclinical rodent models
- Influence on neuronal survival and dendritic/synaptic integrity in disease models
Why Researchers Choose Our P21
For laboratories requiring dependable P21 research peptide, our manufacturing process prioritizes reproducibility and scientific precision. Every batch is confirmed for:
- Purity and structural identity
- Consistent performance in research applications
- Rigorous production controls and full documentation
- Accessible pricing within the research community
Research-Referenced Functional Attributes (Based on existing preclinical and literature data—not intended as claims of therapeutic use)
- Promotion of neurogenesis and maturation in the dentate gyrus granular and subgranular zones in rodent models
- Increase in BDNF levels leading to synaptic protein expression enhancement
- Inhibition of tau hyperphosphorylation through GSK-3β pathway modulation
- Support for investigations into cognitive and neuronal plasticity endpoints in preclinical models
- Potential rescue of synaptic deficits in transgenic neurodegeneration models
- Examination of oral bioavailability and blood-brain barrier permeability in long-term studies
For Research Use Only. Not for human use.
| SKU | p21 |
|---|---|
| Category | Peptides |
| Purity | >99% (HPLC + MS verified) |
| Form | Lyophilized powder |
| Origin | Synthesized in the USA |
Certificate of Analysis
Every lot is verified by reverse-phase HPLC for purity and by mass spectrometry for identity. A current COA is available on request — email sales@limitlesslifenootropics.st with the lot number printed on your vial.
- HPLC purity: >99%
- Identity confirmed by ESI-MS
- Lyophilized, sterile-filtered solutions where applicable
- Stored at −20°C until shipment
Shipping & handling
Orders placed before 2pm CT ship the same business day in cold-pack insulated mailers. USPS Priority delivery in 2–5 business days. Free shipping on US orders over $200.
Frequently asked questions
How should I reconstitute this peptide?
Use bacteriostatic water for short-term lab storage. Direct the diluent down the side of the vial, swirl gently — do not shake.
What is the shelf life?
Lyophilized peptide stored at −20°C is stable for 24+ months. Reconstituted peptide should be refrigerated and used within 2–4 weeks.
Do you ship internationally?
We currently ship within the United States only. International researchers should contact our bulk team for institutional quotes.
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