Semax

Structure

Regulatory & access status

Semax is not approved by the FDA (approved in Russia); products sold online in the US are labeled for research use only.

Sellers that market unapproved peptides for human use can receive FDA warning letters; our vendor directory links any letter we found on fda.gov.

How much research exists on Semax?

PubMed indexes 209 papers mentioning Semax in the title or abstract, 34 of them from the last five years and 4 tagged as clinical trials (search run October 19, 2026; repeat the search).

Most relevant recent papers

• Therapeutic Peptides in Orthopaedics: Applications, Challenges, and Future Directions. — J Am Acad Orthop Surg Glob Res Rev, 2026 · review
• Functional Connectomic Approach to Studying Selank and Semax Effects. — Dokl Biol Sci, 2020
• Semax peptide targets the μ opioid receptor gene Oprm1 to promote deubiquitination and functional recovery after spinal cord injury in female mice. — Br J Pharmacol, 2025
• Therapeutic peptides in gerontology: mechanisms and applications for healthy aging. — Front Aging, 2026 · review
• The Effect of Peptide Semax, an ACTH(4-10) Analogue, on Intracellular Calcium Dynamics in Rat Brain Neurons. — Bull Exp Biol Med, 2025
• Brain Protein Expression Profile Confirms the Protective Effect of the ACTH((4-7))PGP Peptide (Semax) in a Rat Model of Cerebral Ischemia-Reperfusion. — Int J Mol Sci, 2021

What the evidence does not show

• Paper counts measure research attention, not whether Semax works or is safe.
• No FDA review of any "research use only" product's identity, purity, sterility or dose.

Research suppliers that list Semax

43 vendors in our directory listed a product matching Semax in their public catalog on October 19, 2026. Listed alphabetically; a listing is not an endorsement. Research use only.

• Ascension PeptidesCatalog item: “Semax (10MG)”
• Atomik LabzCatalog item: “Semax – 30mg”
• Backroad AminosCatalog item: “Semax 10mg”
• Biocollex ResearchCatalog item: “SEMAX”
• BioGenix PeptidesCatalog item: “Semax 10mg”
• BioLongevity LabsCatalog item: “N-Acetyl Semax Amidate (20mg)”
• Biotech PeptidesCatalog item: “N-Acetyl Semax (25mg)”
• Bulk Peptide SupplyCatalog item: “Semax 10 mg”
• Core PeptidesCatalog item: “N-Acetyl Semax – 25MG”
• CostidesCatalog item: “Semax”
• Dynamic PeptideCatalog item: “Semax Liquid Listing (quantity under review)”
• Eros PeptidesCatalog item: “Semax 10MG”
• Evolve BioPepCatalog item: “Semax 10mg | N-Acetyl Amidate”
• Extreme PeptidesCatalog item: “Semax”
• JetPepsCatalog item: “Semax 10mg”
• Liberty PeptidesCatalog item: “N- Acetyl Semax (30mg)”
• Licensed PeptidesCatalog item: “Semax Atomized Solution 30ml”
• LotusPeptideCatalog item: “Semax 10mg”
• Modern AminosCatalog item: “NA-Semax (N-Acetyl Semax)”
• NuScience PeptidesCatalog item: “Semax NA 10mg”
• OmegAminoCatalog item: “OmA – Semax”
• Paramount PeptidesCatalog item: “Semax (30mg)”
• Peptide CraftersCatalog item: “Semax (10mg)”
• Peptide PartnersCatalog item: “Semax (30mg vials)”
• Peptide.ExpressCatalog item: “Semax”
• Pharma Grade PeptidesCatalog item: “Semax Peptide”
• Pinnacle Peptide LabsCatalog item: “Semax [10mg]”
• Plum Labs ResearchCatalog item: “Semax 10mg”
• Polaris PeptidesCatalog item: “N-Acetyl Semax Amidate 10mg”
• Prime Lab PeptidesCatalog item: “Semax – 5mg”
• Prime PeptidesCatalog item: “Semax”
• ProtideHealthCatalog item: “Semax (N-Acetyl Amidate) 10mg”
• Pure Lab PeptidesCatalog item: “Semax 10mg”
• Ramp PeptidesCatalog item: “SEMAX | 10MG”
• Royal PeptidesCatalog item: “Semax 10mgx10vials”
• San Diego PeptidesCatalog item: “Semax”
• Science.bioCatalog item: “Semax – Aliquot, 50mg”
• Southern AminosCatalog item: “SEMAX ATOMIZER”
• Sports Technology LabsCatalog item: “Semax 10mg”
• Sunrise BioResearchCatalog item: “Semax 10mg x 10vials, 100mg”
• Swiss ChemsCatalog item: “Semax 30mg”
• Voltera SciencesCatalog item: “NA-SEMAX Amidate 10MG”
• Xcel PeptidesCatalog item: “N-Acetyl Semax Amidate”

Prices per mg, where we could verify them, are on our price comparison.

Semax reconstitution math

Lab arithmetic only, not dosing guidance: use the peptide calculator to turn a vial size and diluent volume into a concentration.

Semax FAQ

Head-to-head comparisons

Semax vs Selank

Related compounds

OxytocinVIPCerebrolysinDSIPSelankAdamaxDihexaPinealonAll cognitive, neuro & sleep