
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.
Every batch is tested by independent EU laboratories using HPLC for purity verification and mass spectrometry for sequence confirmation. A Certificate of Analysis is issued for each batch and ships with your order.
Related Research Peptides

Semax

Cerebrolysin

Selank
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.

