Limitless Stack (Semax + Selank)
Also Known As: Limitless stack, Semax Selank stack, Semax + Selank blend, Cognitive stack, Nootropic stack, Focus and anxiety stack
Limitless Stack (Semax + Selank) is a research-grade Peptide stack: Semax + Selank targeting Melanocortin receptor system/BDNF studied in Peptide Stacks research. It is supplied strictly for in vitro laboratory research use only - not for human or animal consumption, and not FDA-approved.
Evidence Tier: Research Compound - No approved human use; sold for laboratory research only.
A premium cognitive-enhancing stack combining the focus-boosting Semax with the anxiety-calming Selank.
At A Glance
| Category | Peptide Stacks |
|---|---|
| Compound Class | Peptide stack: Semax + Selank |
| Molecular Target | Melanocortin receptor system/BDNF (Semax) + Tuftsin analog/GABAergic modulation (Selank) |
| Molecular Weight | combination |
| Amino Acid Sequence | Semax + Selank |
| CAS Number | n/a |
| Half-Life | ~5 min (Semax) / ~2 min (Selank) |
| WADA Status | permitted |
| Evidence Tier | Research Compound |
Mechanism Of Action
It combines neurotrophic factors (like Cerebrolysin or Semax) that build new neural connections, alongside metabolic boosters like NAD+ that maximize the energy output of the brain's mitochondria.
Studied For
- Cognitive enhancement and focus
- Memory retention and learning
- Anxiety and stress reduction
- Neuroprotection and brain health
- Mental clarity and flow state stimulation
- Circadian rhythm and sleep quality
Reported Research Findings
No controlled human combination data exists; individual components have clinical approvals in Russia.
Safety And Handling Notes
Mild stimulatory effects from Semax may be balanced by the calming effects of Selank.
For research use only. Not for human consumption.
Regulatory Status
Not FDA-approved; Semax and Selank approved in select international jurisdictions.
Full Reference Detail
Related Research Guides
Maintained By The Pep Nation Lab Research Team. See Our Editorial Standards And Research Methodology For How This Reference Is Sourced And Reviewed.
This Reference Is Provided For In Vitro Laboratory Research Use Only. Not For Human Consumption. See The Full Research Disclaimer.