
P21 (Cerebrolysin derivative)
Final price and live stock are confirmed on the partner page before checkout.
Neuroprotective peptide derived from Cerebrolysin, researched for cognitive pathway studies.
Recommended alternative: Semax
Particle Peptides does not currently stock P21. Semax is a synthetic ACTH-derived peptide modulating BDNF and dopamine pathways. The most available cognitive-enhancement peptide in the same neurotrophic research category.
Researchers also explore
- Selank - Selank is an anxiolytic / nootropic peptide derived from tuftsin - used for anxiety, mood and cognitive research, often paired with or substituted for Semax.
SKU: BBL-009
Checkout: Current partner listing and availability
Product Overview
Neuroprotective peptide derived from Cerebrolysin, researched for cognitive pathway studies.
Batches are tested by independent EU laboratories using HPLC for purity, with identity confirmed against a reference standard. Certificates of analysis carry the batch number and testing date, and the ones we hold are published on our lab reports page. Ask the partner for the batch-specific certificate at checkout.
Related Research Peptides

Semax

Selank

Cerebrolysin

Noopept
Recommended alternative: Semax
Particle Peptides does not currently stock P21. Semax is a synthetic ACTH-derived peptide modulating BDNF and dopamine pathways. The most available cognitive-enhancement peptide in the same neurotrophic research category.
Researchers also explore
- Selank - Selank is an anxiolytic / nootropic peptide derived from tuftsin - used for anxiety, mood and cognitive research, often paired with or substituted for Semax.
