Semax

Semax originated in Russian neuropeptide research, engineered from a short fragment of adrenocorticotropic hormone (ACTH 4–10) with added residues that stabilise it and remove the parent hormone's hormonal activity. The result is a tool compound studied for neurological rather than endocrine effects.

In the literature, Semax is examined for its relationship to neurotrophic factors such as BDNF and for neuroprotective signalling in models of neural stress. Researchers are drawn to it because it offers a stable, well-defined peptide for probing cognition-related pathways.

Against adjacent nootropic peptides, Semax is frequently paired with Selank in study designs — the two emerged from the same research programme but are examined for different aspects of neural signalling, which is why Canadian cognitive-research groups often source them together.

• Cognitive Function Research — Semax is studied for its association with learning- and memory-related pathways in laboratory models.
• Neurotrophic Signalling — Research examines its relationship to BDNF and related neurotrophic factors.
• Neuroprotection — The literature investigates its role in models of neural stress and protection.
• Comparative Neuropeptide Studies — It is used alongside Selank as a contrasting nootropic tool.

• Selank — A companion nootropic peptide from the same research lineage.
• NAD+ — A coenzyme studied in cellular-metabolism and neural-energy contexts.
• Retatrutide — Reta Labs' flagship metabolic research peptide.

Where can I buy semax in Canada for research?

Semax is supplied to Canadian research buyers as a lyophilized, research-grade peptide, HPLC-verified to ≥99% with MS-confirmed identity and a batch-specific COA.

How is Semax different from Selank?

Both are synthetic nootropic peptides from the same research lineage, but Semax is studied more for neurotrophic and cognitive pathways (e.g., BDNF), whereas Selank is studied more for anxiolytic and immunomodulatory signalling.

Is Semax naturally occurring?

No. It is a synthetic peptide engineered from an ACTH fragment, modified so that it lacks the parent hormone's activity and is suited to neurological research.

How are purity and identity verified?

Each batch is HPLC-verified (≥99%) and MS-confirmed, with a batch-specific COA. Material is lyophilized and stored at 2–8 °C, protected from light.

⚠️ For research use only. Not intended for human or veterinary use. Not a drug, food, or supplement.