Curated Stack
Cognitive Stack: Selank + Semax
selanksemax
Editorial review by Pepticker Editorial· Pepticker editorial team
Published May 4, 2026
Protocol rationale
selank
Selank
Selank (TP-7, heptapeptide) provides anxiolytic and mild cognitive-enhancing effects via GABAergic modulation and BDNF upregulation in rodent studies. Reduces anxiety-related behaviour without motor impairment in preclinical models. Intranasal route is most commonly studied; typical research dose is 250–750 mcg/day. May counterbalance any stimulatory side effects of Semax.
0.25 mg/wk · 10 weeks
semax
Semax
Semax (ACTH(4-7) PGP heptapeptide) upregulates BDNF and NGF in the prefrontal cortex and hippocampus in rodent models, with demonstrated neuroprotective effects in ischaemia models. Used clinically in Russia for stroke and cognitive impairment at 300–600 mcg/day intranasal. The Selank + Semax combination is a classic Russian nootropic protocol targeting both anxiety (Selank) and cognitive drive (Semax) simultaneously.
0.3 mg/wk · 10 weeks
Interactive cost planner
Doses pre-filled from the editorial protocol. Adjust quantities and durations — costs and vendor recommendations update live.
1 — Select peptides (2–5)
Selank
cognitive
total mg
2.5
Semax
cognitive
total mg
3.0
+200 more — refine your search
Share this stack with pre-filled doses
2 — Cost analysis
Split purchaseCheapest
$38.86
Best vendor per peptide individually
Single vendor
$38.86
Best all-in-one: Research Peptides Europe
Split purchase saves $0.00 vs. single vendor — but requires 1 separate orders.
Dosing logistics
Total vials
2
selank: 1× 5mg
semax: 1× 5mg
BAC water vials
1
30 mL / 2 mL per recon
Syringes
70
7 inj/wk × longest protocol
3 — Purchase plan
4 — Vendor coverage
Expand to see which vendors carry which peptides in this stack.
Research purposes only. Pepticker is an editorial price comparator, not a clinical adviser. Prices are approximate and subject to change. Verify independently before any use. All vendors sell peptides for research only and not for human consumption.