Semax vs Selank: Nootropic Research Peptides Compared
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Semax vs Selank: nootropic research peptides compared
Semax and Selank are the two most requested nootropic research peptides in Australia. Both originated in Russian research programmes and both are studied for effects on the central nervous system, but they come from different parent molecules and are investigated for different endpoints. This guide compares them and explains how each is handled. Bondi Labs stocks Semax and Selank from Australian stock.
Supplied strictly for laboratory research use only. Not for human or veterinary use.
What is Semax?
Semax is a synthetic peptide derived from a fragment of adrenocorticotropic hormone (ACTH). In research it is studied for effects on cognition and neuroprotection, with particular interest in its association with brain-derived neurotrophic factor (BDNF) expression in study models.
What is Selank?
Selank is a synthetic analogue of the human peptide tuftsin. In research it is studied mainly in the context of anxiety-related and immunomodulatory pathways, and it is often grouped with anxiolytic research compounds rather than pure cognitive enhancers.
Semax vs Selank at a glance
| Semax | Selank | |
|---|---|---|
| Parent molecule | ACTH fragment | Tuftsin analogue |
| Primary research focus | Cognition, neuroprotection, BDNF | Anxiety-related and immunomodulatory pathways |
| Category | Nootropic research peptide | Anxiolytic research peptide |
| Form | Lyophilised powder | Lyophilised powder |
Which is which, simply put
If a research question is about cognition, focus or neuroprotection, Semax is the reference compound. If it is about stress and anxiety-related pathways, Selank is the one built for it. Some studies use them alongside each other to compare the two mechanisms, which is why labs frequently stock both.
Handling and storage
Both are lyophilised powders reconstituted with bacteriostatic water. Add the water gently against the vial wall, do not shake, and store the reconstituted solution refrigerated at 2 to 8°C without repeated freeze-thaw. Use the reconstitution calculator to set your concentration.
Buying in Australia
Bondi Labs supplies both peptides from Australian stock with same-day dispatch before 12pm AEST, a COA per batch, and tracked delivery nationwide. Shop Semax or Selank, or explore the full research peptide range.
Frequently asked questions
What is the difference between Semax and Selank?
Semax comes from an ACTH fragment and is studied for cognition and neuroprotection; Selank is a tuftsin analogue studied for anxiety-related and immunomodulatory pathways.
Can Semax and Selank be used together in research?
They are often studied side by side because they target different pathways, which is why many labs keep both.
Are they available in Australia?
Yes, both are held in Australian stock at Bondi Labs with same-day dispatch before 12pm AEST.
Disclaimer: Supplied strictly for laboratory research use only. Nothing here is medical advice or a therapeutic claim, and none of these statements has been evaluated by the TGA or FDA. Not for human or veterinary use.