Semax is a synthetic heptapeptide — Met-Glu-His-Phe-Pro-Gly-Pro, a stabilised analogue of the ACTH(4-10) fragment — referenced across pro-cognitive, neurotrophic and neuropeptide research literature; the leading pro-cognitive nootropic research peptide. Elite AU Peptides supplies it strictly for in-vitro and laboratory research use only — not for human or animal consumption, not a therapeutic good, and not TGA-approved. No cognitive, nootropic, or human-use claim is made about it.

What research is Semax associated with?

Its neurotrophic mechanism has been characterised in research models: Dolotov and colleagues (Brain Research, 2006) reported that Semax raises hippocampal BDNF (brain-derived neurotrophic factor) protein and exon-specific BDNF mRNA and increases trkB-receptor phosphorylation. A companion study (Dolotov and colleagues, Journal of Neurochemistry, 2006) demonstrated specific, saturable binding together with a rapid rise in basal-forebrain BDNF — evidence for a receptor-mediated neurotrophic mechanism. It is studied in vitro as a research tool, not as a treatment.

How is Semax reconstituted, stored and shipped?

Reconstitute the lyophilised vial with bacteriostatic water — a 10mg vial in 5mL yields a 2mg/mL working stock. Store the powder at −20°C protected from light; once reconstituted, refrigerate at 2–8°C. Dispatched AU-domestic, free shipping over $100, same-day dispatch before 12pm AEST. Supplied strictly for laboratory research use only.

[ Nootropic research ]

Semax in Australia: a pro-cognitive nootropic research guide

What Semax is — a stabilised ACTH(4-10) analogue referenced across BDNF and neurotrophic research — how it pairs with Selank, and how research-grade material is HPLC-verified. A laboratory research reference for Australian researchers.

7 min read · Updated 22 July 2026

Semax nootropic research peptide vial — 10mg, independently HPLC-tested, COA on file

[ Research use only · Not for human consumption ]

Semax in Australia. Semax is a synthetic heptapeptide — Met-Glu-His-Phe-Pro-Gly-Pro, a stabilised analogue of the ACTH(4-10) fragment — referenced across pro-cognitive, neurotrophic and neuropeptide research literature, and the leading pro-cognitive nootropic research peptide. This guide is a research-reference summary for Australian researchers; it makes no cognitive, nootropic, or human-use claim.

What Semax is

Semax derives from the ACTH(4-10) fragment, extended at the C-terminus with a Pro-Gly-Pro motif that stabilises the peptide against enzymatic degradation. That stabilising extension is what distinguishes it from the native fragment and gives it the in-vitro stability that makes it a practical research reference in the neurotrophic literature.

The BDNF / neurotrophic mechanism

Semax’s neurotrophic mechanism has been characterised in research models: Dolotov and colleagues (Brain Research, 2006) reported that it raises hippocampal BDNF (brain-derived neurotrophic factor) protein and exon-specific BDNF mRNA and increases trkB-receptor phosphorylation, implicating the BDNF/trkB signalling system. A companion study by Dolotov and colleagues (Journal of Neurochemistry, 2006) demonstrated specific, saturable binding together with a rapid rise in basal-forebrain BDNF — evidence for a receptor-mediated neurotrophic mechanism. These anchor Semax as a reference peptide for BDNF-pathway research.

Semax and Selank: the nootropic pair

Semax is most frequently studied alongside Selank — the two form the canonical “nootropic pair” in research literature, Semax framed as the pro-cognitive (BDNF / neurotrophic) partner and Selank as the anxiolytic / GABAergic partner. The Semax vs Selank comparison draws out the distinction, and the Selank guide covers the partner compound.

Identity, purity and handling

Every batch of Semax is independently HPLC-tested by Janoshik before it is listed, with the certificate published on the product page and in the lab-reports library — real batch number, measured percentage, independently verifiable at janoshik.com. Reconstitute with bacteriostatic water; store the powder at −20°C and, once reconstituted, at 2–8°C. Semax is not TGA-approved and is not a therapeutic good — supplied strictly for in-vitro and laboratory research use only, with no cognitive or human-use claim.

[ Frequently asked ]

Nootropic research — questions researchers ask.

What is Semax?: Semax is a synthetic heptapeptide — Met-Glu-His-Phe-Pro-Gly-Pro, a stabilised analogue of the ACTH(4-10) fragment — referenced across pro-cognitive, neurotrophic and neuropeptide research literature; the leading pro-cognitive nootropic research peptide. Elite AU Peptides supplies it strictly for in-vitro and laboratory research use only — not for human or animal consumption, not a therapeutic good, and not TGA-approved. No cognitive, nootropic, or human-use claim is made about it.
What research is Semax associated with?: Its neurotrophic mechanism has been characterised in research models: Dolotov and colleagues (Brain Research, 2006) reported that Semax raises hippocampal BDNF (brain-derived neurotrophic factor) protein and exon-specific BDNF mRNA and increases trkB-receptor phosphorylation. A companion study (Dolotov and colleagues, Journal of Neurochemistry, 2006) demonstrated specific, saturable binding together with a rapid rise in basal-forebrain BDNF — evidence for a receptor-mediated neurotrophic mechanism. It is studied in vitro as a research tool, not as a treatment.
How does Semax pair with Selank?: Semax and Selank are the canonical “nootropic pair” in research literature — Semax framed as the pro-cognitive (BDNF / neurotrophic) partner and Selank as the anxiolytic / GABAergic partner. They are most frequently referenced together; see the Selank guide or the Semax vs Selank comparison for the distinction.
Is Semax TGA-approved in Australia?: No. Semax is not TGA-approved and is not a therapeutic good. It is supplied strictly for in-vitro and laboratory research use only, with no medical, cognitive, or human-use claim.
How is research-grade Semax tested?: Every batch is independently HPLC-tested by Janoshik Analytical before it is listed. The measured purity is published on the product page and in the lab-reports library — real batch number, measured percentage, independently verifiable at janoshik.com; nothing is listed without a certificate on file.
How is Semax reconstituted, stored and shipped?: Reconstitute the lyophilised vial with bacteriostatic water — a 10mg vial in 5mL yields a 2mg/mL working stock. Store the powder at −20°C protected from light; once reconstituted, refrigerate at 2–8°C. Dispatched AU-domestic, free shipping over $100, same-day dispatch before 12pm AEST. Supplied strictly for laboratory research use only.

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Elite AU Peptides supplies research peptides and related compounds for laboratory and in-vitro research use only. Products are not therapeutic goods, are not TGA-approved, and are not for human or animal consumption. Nothing on this site constitutes medical advice or a therapeutic claim. Purchasers must be 18 years or older and are responsible for complying with all applicable laws in their jurisdiction.