Select Strength — 10mg
For in vitro laboratory research use only. Not for human consumption, diagnostic, or therapeutic use.
Research Data
Mechanisms of Action
Data presented from peer-reviewed in vitro studies. All findings are laboratory observations only.
Dolotov et al. characterised Semax-induced BDNF and NGF upregulation in hippocampal tissue, demonstrating the fastest and largest BDNF elevation of any synthetic peptide studied — with both transcription-level mRNA increases and protein-level confirmation.
Russian Phase II trials in acute ischaemic stroke patients demonstrated significant improvement in cognitive recovery scores at 30 days vs. placebo, establishing Semax as a registered neuroprotective agent. The ACTH(4-10) core provides VEGF and VEGFR2 upregulation supporting neovascularisation.
Semax (ACTH 4-10 heptapeptide analogue) produces 8–12× BDNF elevation in hippocampal tissue within 24 hours — the most rapid neurotrophin induction documented for any synthetic peptide in cell culture and rodent CNS models.
Analytical Data
| Specification | Value |
|---|---|
| CAS Number | 80714-61-0 |
| Molecular Formula | C₃₇H₅₁N₉O₁₀S |
| Molecular Weight | 813.92 g/mol |
| Purity (HPLC) | 99.3% |
| Appearance | White lyophilised powder |
| Solubility | Soluble in water (1 mg/mL) |
| Storage | −20°C long-term / 2–8°C short-term |
| Shelf Life | 24 months from production date |
| Research Grade | Yes — For In Vitro Use Only |
What Research Has Shown
Hippocampal BDNF Study — J. Neurochem., 2006
BDNF Elevation in Hippocampal Cultures at 24h vs. Baseline
Comparative Activity Profile
In Vitro Safety Data
Semax has clinical approval in Russia since 1982 with an established safety profile across stroke, TIA, and cognitive impairment indications. No receptor downregulation observed at effective doses in model systems.
Observed Adverse Indicators
Cytotoxicity in vitro
NoneBDNF receptor downregulation
NoneNeurotoxicity at research doses
NoneTransient nasal irritation
Minimal⚠️ Theoretical Concern
Semax is designed for intranasal delivery with nose-to-brain transport. In vitro cell culture studies use aqueous solution. Researchers should account for rapid BDNF/NGF axis activation when designing hippocampal or CNS-focused experiments.
Researcher Reference
Semax binds melanocortin receptors and activates MAPK/ERK signalling that upregulates BDNF and NGF gene expression in hippocampal and cortical neurons. The 8–12× BDNF elevation observed within 24h makes it the fastest-acting neurotrophin inducer in research models.
Semax produces direct BDNF elevation at the transcription level — unlike racetams (AMPA modulation) or adaptogens (general stress response). It has Phase II human clinical trial data for stroke recovery and cognitive impairment, unlike most nootropic peptides.
Solution: 4°C, use within 30 days. Keep upright, protect from light.
Peer-Reviewed Literature
All citations refer to published peer-reviewed in vitro research. Data presented for scientific reference only. No claims made regarding human therapeutic use.
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