Cognitive Research Peptides

Semax, Selank and cognitive research peptides

Cognitive or nootropic peptides are studied for effects on neurotrophic signalling, stress response and neuroprotection. Semax is an ACTH(4-10) analogue studied for BDNF expression; N-Acetyl Semax Amidate is a modified, more stable form; Selank is a tuftsin analogue studied in anxiety and stress models; and DSIP is studied in sleep research.

The category also includes Dihexa, P21, Cerebrolysin, NAP (Davunetide) and FGL. Start with the Semax evidence brief, the Selank evidence brief or Semax vs Selank.

Buying cognitive research peptides

Each product lists its HPLC purity specification (≥98% or higher). Where a CertikLabs certificate of analysis (COA) is available for a strength and lot, it is linked from that product page with HPLC purity, LC-MS identity, and concentration results. Confirm whether the listing is the parent peptide or a modified analogue, then review the applicable strength and available report. For an evidence-based purchase review, use the research peptide supplier checklist, learn how peptide lab verification works, and confirm that any available report matches the ordered product, strength and lot. All compounds are supplied lyophilized, strictly for in-vitro laboratory research. They are not drugs, supplements or cosmetics and are not for human or veterinary use — see Research Use Only.

Frequently asked questions

What is the difference between Semax and Selank?

Semax is derived from ACTH and is mainly studied for neurotrophic and cognitive effects; Selank is derived from tuftsin and is mainly studied for anxiolytic and immune-modulating effects.