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P21 (P021) 5mg

5.00 out of 5
(2 customer reviews)


P21 peptide for sale is available in lyophilized powder form, in 5mg vials.

In stock

About P21 Peptide: P21 is a peptide that was developed by reverse engineering Cerebrolysin’s effect using epitope mapping. Researchers established that the central neurogenic and memory enhancing effects from Cerebrolysin were due to its ability to react to human CNTF.

Scholar researchers shortened their inquiry, and discovered that an 11-mer peptide, labeled peptide 6 (Ac-VGDGGLFEKKL-NH2), enhanced hippocampus-dependent learning and memory, increased neurogenesis, and neuronal plasticity. Scientists then resolved the most active sub-sequence in the peptide called peptide 6C (Ac-DGGL-NH2). However, this peptide sequence showed to have low blood brain barrier permeability, and was easily broken down by plasma enzymes.

To test this, they added an adamantane moiety to the N-terminus of the peptide sequence. This exceptionally lipophilic tricyclic alkane highly elevated the BBB permeability, and protected the peptide from enzymatic degradation. This made the brand-new peptide able to be effective when taken via subcutaneous administration.

Differences Between P21 & Cerobrolysin

Cerebrolysin and P21 are relatively similar in vigor, but the difference is in their delivery of those benefits. They are related, but do have some differences.

Cerebrolysin was more “comprehensive” and increases cognition. But, research studies noted an improved aspect more so than another, it was evenly distributed.

P21 had similar improvements in trials, but were more localized in areas of cognition. But in those spaces, it was improved more dramatically than Cerebrolysin.

Compound P21 promotes neurogenesis

p21 neurogenesis


P21 was synthesized in 2010, it was later identified that it may “improve learning and memory, promote neurogenesis and synaptic plasticity in mice”.

P21’s Mechanism of Action

n terminus p21

Buy P21 nootropic peptide online from GenX Peptides.

We offer the highest grade and purity of P21 for sale at a competitive price in the USA. For best results buy PO21 of the highest quality from GenX Peptides.

For more information on P21 peptide please visit Wikipedia.

Product Name

P21 (PO21)

Unit size


Molecular Formula


Molecular Weight

578.3 g/mol


CDKN1A, CAP20, CDKN1, CIP1, MDA-6, P21, SDI1, WAF1, p21CIP1, cyclin-dependent kinase inhibitor 1A, cyclin dependent kinase inhibitorQRIKDFLRNLVPRTES


White Powder

Peptide Purity



Chemical Synthesis


Lyophilized P21 peptide although stable at room temperature for 3 months, should be stored desiccated below -18°C.

Safety Information

For Research Only. Not Intended for Diagnostic or Therapeutic Use

Products on the website are not intended for use in the diagnosis, cure, mitigation, treatment, or prevention of disease and are not intended to affect the structure or any function of the body. The use of our products are for only research/laboratory purposes.

Additional information

Weight1 oz
Dimensions1 × 1 × 2 in

2 reviews for P21 (P021) 5mg

  1. 5 out of 5

    Anonymous (verified owner)

    good stuff effective

  2. 5 out of 5

    Anonymous (verified owner)

    usUnited States

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P21 (P021) 5mg Peptide Vial For Sale
P21 (P021) 5mg