Researchers sourcing Semax for preclinical studies need a supplier that understands the analytical requirements for a heptapeptide with specific sequence chemistry and with intranasal delivery as the primary research administration route. This guide covers supplier evaluation criteria and shows how Midwest Peptide meets those criteria for research grade Semax supply.
Where to Buy Semax for Research: Heptapeptide Sourcing Guide
Semax · Published April 14, 2026 · Updated May 18, 2026 · 7 min read
Quick Answer
Researchers source Semax from suppliers providing documented Certificate of Analysis, HPLC purity verification, and lot traceability for this ACTH-derived heptapeptide. This guide covers vendor evaluation and how Midwest Peptide Semax meets research-grade specifications for cognitive and neuroprotective research. For research use only, not for human consumption.
Research Use Only. All products are strictly for research use only (RUO). Not for human consumption. Products on this site are not intended to diagnose, treat, cure, or prevent any disease. These statements have not been evaluated by the FDA. By purchasing, you agree that you are a qualified researcher and that products will be used solely for in-vitro research purposes.
- Recent Peer-Reviewed Research on Semax Neurobiology
- What Research Grade Semax Supply Requires
- Sourcing Criteria for Research Grade Semax
- Red Flags When Evaluating Semax Suppliers
- What Semax Is Studied For in Research
- Frequently Asked Sourcing Questions
- External Research Resources
- Related Research Reading
- Shop Semax at Midwest Peptide
- Related Research Articles
- Explore Related Products
- Frequently Asked Questions
- Glossary
Frequently Asked Questions
What is Semax in research contexts?
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Semax is a synthetic heptapeptide derived from the ACTH(4-10) fragment with extended stability via a C-terminal Pro-Gly-Pro tail. It is studied in preclinical models for cognitive endpoints, BDNF and NGF expression, and neuroprotection in cerebral ischemia.
What should researchers verify when sourcing Semax?
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Verify HPLC purity above 98%, mass spec identity confirming the seven-amino-acid sequence (Met-Glu-His-Phe-Pro-Gly-Pro), peptide content quantification, endotoxin testing, and a recent batch-specific COA. Stability data is essential for the lyophilized form.
Where can research labs source verified Semax?
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Midwest Peptide supplies research-grade Semax with comprehensive COA documentation, HPLC purity verification, mass spec identity confirmation of the heptapeptide sequence, and lot tracking for reproducible neuropeptide research.
Is Semax approved for human use?
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No. Semax is not approved by the FDA for any human therapeutic use. It is supplied strictly for in-vitro and preclinical research purposes by qualified investigators.
Glossary
Key terms used in this article.
- ACTH(4-10)
- The 4-10 amino acid fragment of adrenocorticotropic hormone, the natural sequence from which Semax is derived.
- BDNF
- Brain-derived neurotrophic factor, a key neurotrophin supporting neuronal survival, synaptic plasticity, and learning.
- NGF
- Nerve growth factor, the prototypical neurotrophin essential for peripheral and central neuronal survival and growth.
- Intranasal Delivery
- Administration through the nasal mucosa, used for peptides like Semax to bypass first-pass metabolism and access the CNS.
- Heptapeptide
- A peptide consisting of seven amino acid residues; Semax has the sequence Met-Glu-His-Phe-Pro-Gly-Pro.
- ACTH-Derived Peptide
- A peptide based on the sequence of adrenocorticotropic hormone or its fragments, including Semax derived from ACTH(4-10).
- Synthetic Heptapeptide
- A peptide consisting of seven amino acid residues produced by chemical synthesis, the format of both Selank and Semax.
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Research Use Only. All products are strictly for research use only (RUO). Not for human consumption. Products on this site are not intended to diagnose, treat, cure, or prevent any disease. These statements have not been evaluated by the FDA. By purchasing, you agree that you are a qualified researcher and that products will be used solely for in-vitro research purposes.
