Cognitive Stack
Two nootropic research peptides. Semax (NACL-PGP) and Selank (TKPRPGP).
2 vials · Bacteriostatic water sold separately
What's in this stack
Why this stack
Semax is a heptapeptide ACTH(4-10) analogue, widely studied in Russian neuropharmacology literature for BDNF-related mechanisms. Selank is a tuftsin analogue investigated for anxiolytic activity via GABA-A receptor modulation in animal models. Both ship as stable lyophilised powders requiring bacteriostatic water reconstitution (sold separately). Research use only, see CoA for lot-specific purity data.
How to use
- Reconstitute each peptide using bacteriostatic water (sold separately) per the lot-specific CoA instructions.
- Store reconstituted peptides at 2-8°C, use within 30 days of mixing.
- Research use only. See CoA for purity data.
Stack FAQ
Can I buy these peptides individually instead?
Yes. Every component in this stack is also sold as a standalone vial on our shop. The stack price reflects a discount applied when the components are purchased together.
Will the stack ship as one parcel?
Yes. All vials in a stack ship together in a single Royal Mail Tracked parcel from our UK facility. Same-day dispatch on orders placed before 2pm GMT.
Do I get a separate Certificate of Analysis for each peptide?
Yes. Each component vial includes its own batch-specific HPLC-UV/MS Certificate of Analysis. CoAs are also published on each individual product page.