Pepticker
Curated Stack

Cognitive Stack: Selank + Semax

SelankSemax

Editorial review by Pepticker Editorial· Pepticker editorial team

Published May 4, 2026

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Protocol rationale
Selank
Selank
Preclinical research on Selank (TP-7, heptapeptide) reports anxiolytic and mild cognitive-enhancing effects in rodent models via GABAergic modulation and BDNF upregulation, without motor impairment. Reported research protocols use intranasal dosing of approximately 250–750 mcg/day. May counterbalance any stimulatory effects of Semax in a research context.
0.25 mg/wk · 10 weeks
Semax
Semax
Preclinical research on Semax (ACTH(4-7) PGP heptapeptide) reports BDNF and NGF upregulation in the prefrontal cortex and hippocampus and neuroprotective effects in ischaemia models. Used clinically in Russia at 300–600 mcg/day intranasal. The Selank + Semax pairing is the classic Russian-literature nootropic combination targeting anxiety and cognitive drive in tandem.
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
+201 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

Cheapest option per peptide at your specified quantities. Affiliate links apply.

selank
1× 5mg vials from Research Peptides Europe
$3.886/mg
$19.43
Buy →
semax
1× 5mg vials from Research Peptides Europe
$3.886/mg
$19.43
Buy →
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.

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Peptides in this stack & related tools

Peptides in this stack
  • Selank— Anxiolytic neuropeptide
  • Semax— Nootropic ACTH fragment
Tools & references