P21/ 99% purity/10mg P210/ Neuroprotection and Nootropic Effects

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• Promoting Neurogenesis and Memory Recovery: By inhibiting the leukemia inhibitory factor (LIF) signaling pathway, it increases the expression of brain-derived neurotrophic factor (BDNF) and nerve growth factor, thereby promoting neurogenesis in the dentate gyrus of the hippocampus and enhancing memory processes.
• Reversing Synaptic Deficits and Cognitive Impairment: In Alzheimer's disease mouse models, the P21 Peptide has been shown to rescue dendritic and synaptic deficits, promote synaptic plasticity, and significantly improve cognitive dysfunctions such as learning and memory.
• Alleviating Tau Protein and Amyloid Plaque Pathology: By increasing BDNF-mediated reduction in glycogen synthase kinase-3β (GSK-3β) activity, the P21 Peptide potently inhibits the abnormal hyperphosphorylation of Tau protein. This mitigates pathological damage such as neurofibrillary tangles and helps clear harmful amyloid protein accumulations in the brain.
• Improving Cognitive Aging and Providing Antioxidant Effects: In aged rat models, long-term oral administration of the P21 Peptide significantly alleviates age-related declines in learning and memory, and restores abnormal hippocampal metabolites. Additionally, it possesses antioxidant stress properties that help reduce oxidative stress-induced damage to the brain.

      The core principle for storing parenteral lyophilized powder is strict refrigeration and absolutely no freezing. Before reconstitution, it is generally stored in the dark at 2 to 8°C. Once mixed and dissolved with the solvent, it must be used within a very short period.

Before Reconstitution (Original Packaging)

Strict Refrigeration: The vast majority of parenteral lyophilized powders need to be stored in a refrigerator at 2 to 8°C.

Absolutely No Freezing: Freezing will cause irreversible damage to the structure of proteins and peptides.

Protection from Light and Moisture: The product must be kept in its original packaging to avoid direct sunlight and accidental exposure to moisture.

After Reconstitution (Mixed State)

Highly Time-Sensitive: Once the lyophilized powder is dissolved with a sterile solvent, the stability of the drug drops significantly. It usually needs to be administered immediately or within a very short window (e.g., a few hours).

No Prolonged Storage: Under no circumstances should the reconstituted solution be stored in the refrigerator for use the next day. This can easily lead to loss of efficacy or severe bacterial contamination.

 * We will ship your order within 24–48 hours after payment is received.

 * We have dedicated shipping routes, allowing us to select the fastest and safest carrier for your specific destination—including FedEx, UPS, China Post, and other international express services. The estimated delivery time is approximately 7–15 business days.

 * We will also track the logistics throughout the entire process and update the logistics information for buyers in real time.

          Our company is located in Zhejiang Province and is a Chinese enterprise specializing in the production of peptide products.We are not intermediaries or resellers; we are the original manufacturer. This allows us to offer you the most competitive pricing. Our motto is: to manufacture products with care and serve customers with dedication.We are dedicated to serving every visitor with heart. No matter where you come from, you will experience our premium VIP service. We guarantee that every customer receives only the finest products, backed by exceptional after-sales support, as we strive to ensure your complete satisfaction.

1. What's the payment methods?
We could accept pay through Alipay, USDT, BTC and TT.

2.Does the product have a test report?
Each batch of our products undergoes testing before leaving the factory, and a Certificate of Analysis (COA) report is issued.

3.Can customers customize their own labels?

Custom labeling services are available. Please contact us to discuss your specific requirements prior to placing an order.

4.What is the product's shelf life?

When unopened, our products have a shelf life of two years under both room temperature and frozen storage conditions. Therefore, you can rest assured that extended shipping times will not cause the product to expire or degrade.

1.  * Ultra-High Purity Guaranteed
   Every batch is synthesized and purified to >99% purity, delivering the reliability and reproducibility your sensitive experiments demand.
2.  * Precision Dosing & Batch Consistency
   Peptides are accurately weighed and vacuum-sealed under sterile conditions. We enforce rigorous quality control to ensure unwavering consistency from batch to batch.
3.  * Endotoxin-Free & Sterile Assurance
   Produced in a certified cleanroom, our peptides are rigorously tested to be free of endotoxins, microbes, and impurities—safeguarding the integrity of your cell-based and in vivo studies.