Semax Peptide (ACTH 4-10 Analog): 1mg/ml Research Pen Guide 2026
Researching Semax peptide? This guide explains what the ACTH(4-10)-analog heptapeptide is, how it is studied as a nootropic and neuroprotective compound in research models, how it compares to Selank, and how PrymaLab supplies it — a preloaded 3ml autoinjector pen at 1mg/ml for in-vitro and non-human research only.
Research-use-only disclaimer: Semax supplied by PrymaLab is a research-use-only material for in-vitro and non-human laboratory study. It is not for human or veterinary use and is not approved by the FDA to diagnose, treat, cure, or prevent any condition. Always verify the legal status of research compounds in your jurisdiction.
Quick Answer
What is Semax? Semax is a synthetic heptapeptide (seven amino acids) based on a fragment of the hormone ACTH (the ACTH 4-10 region). In research it is studied for nootropic and neuroprotective pathways, including effects linked to BDNF and NGF in animal models. PrymaLab supplies it as a research-use-only 3ml pen at 1mg/ml.
This product is not for human or veterinary use; everything below describes laboratory and animal-model research only.
Semax is an ACTH(4-10)-analog heptapeptide studied in research for nootropic and neuroprotective pathways.
PrymaLab format: a preloaded 3ml autoinjector pen at 1mg/ml for reproducible, traceable measured delivery.
Semax vs Selank is a frequent comparison: both are Russian-developed research peptides, but Semax is ACTH-derived while Selank is a tuftsin analog.
Research-use-only. Semax is not FDA-approved; published dosing refers to experimental models, not human protocols.
What Is Semax?
Semax is a synthetic heptapeptide — seven amino acids — based on the ACTH(4-10) fragment of adrenocorticotropic hormone, with a modification that improves stability. Like Selank, it was developed by Russian researchers and is studied as a research peptide in most jurisdictions.
For a laboratory, what is Semax means a defined research compound supplied at a reference concentration for reproducible in-vitro and non-human studies. PrymaLab presents Semax at 1mg/ml in a sealed 3ml autoinjector pen. A related variant, N-acetyl Semax amidate, also appears in the literature.
How Semax Is Studied to Work
Preclinical literature discusses Semax in the context of nootropic (cognitive) and neuroprotective pathways, including effects linked to BDNF and NGF expression and to neurotransmitter systems. These mechanisms are observed mainly in animal models and remain under active investigation.
Why Researchers Choose the PrymaLab Semax Autoinjector Pen
PrymaLab supplies Semax in a preloaded 3ml autoinjector pen calibrated to 1mg/ml, giving laboratories a uniform, repeatable format for in-vitro and non-human research. The sealed pen supports clean handling, measured delivery, and clear record-keeping across replicates.
- Fixed 1mg/ml reference concentration for reproducible study design.
- Measured delivery for reproducible volumes and reduced variability.
- Optional glass reloading cylinder to standardize preparations between runs.
- Batch traceability linking every draw to a single reference batch.
PrymaLab Semax Specifications
| Specification | Detail |
|---|---|
| Compound | Semax (ACTH(4-10) analog, heptapeptide nootropic) |
| Form | Preloaded autoinjector pen (research-use-only) |
| Pen size | 3ml |
| Concentration | 1mg/ml |
| Optional accessory | Glass reloading cylinder for standardized refills |
| Intended use | In-vitro & non-human laboratory research only |
| Reference | PubChem compound record (Semax) |
How to Handle and Store the Semax Research Pen
Follow these laboratory handling steps when receiving and using the research-use-only Semax autoinjector pen. These describe lab handling only and are not human-use instructions.
- Receive and inspect. Confirm the Semax pen is sealed, the batch number is legible, and the solution is clear before logging it into inventory.
- Refrigerate and protect from light. Store the preloaded pen at 2-8°C away from light; avoid freeze-thaw cycles that can degrade the heptapeptide.
- Record the batch. Log lot number, concentration (1mg/ml), and receipt date so each measured delivery traces to one reference batch.
- Dispense measured volumes. Use the pen’s measured-delivery mechanism to draw reproducible volumes into your in-vitro or non-human preparation, documenting each draw.
- Standardize with the reload cylinder. Where supplied, use the glass reloading cylinder to refill and keep the Semax preparation consistent across replicates.
- Track stability and dispose. Record the open date, monitor working stability per protocol, and dispose of the research material via your laboratory chemical-waste process.
Semax vs Selank: How Researchers Compare Them
Semax vs Selank is a frequent comparison because both are Russian-developed research peptides studied for neurological pathways. They are distinct molecules, summarized below.
| Attribute | Semax | Selank |
|---|---|---|
| Origin peptide | ACTH(4-10) analog (adrenocorticotropic fragment) | Tuftsin analog (immune peptide) |
| Common research framing | Nootropic / neuroprotective models | Anxiolytic / anti-anxiety models |
| Typical study pairing | Frequently compared with Selank | Frequently compared with Semax |
| PrymaLab format | 3ml pen, 1mg/ml | 3ml pen, 1mg/ml |
| Status | Research-use-only | Research-use-only |
Many research teams study the two together; PrymaLab supplies each in the same 3ml 1mg/ml pen format to simplify comparative study design.
What the Research Studies: Semax “Benefits” in Context
Searches for Semax benefits or semax peptide benefits usually mean: what have preclinical studies explored? In animal and in-vitro models, Semax research has examined areas including:
- Nootropic / cognition-related pathways
- Neuroprotection and recovery models
- BDNF and NGF expression
- Attention and stress-adaptation research
These are research observations, not established human outcomes. PrymaLab makes no therapeutic claims and provides no human dosing guidance. Questions like how many mg of Semax a day refer to experimental study designs, not to this research material.
Semax Side Effects & Legal Status in Research Settings
Reported Semax side effects derive from experimental and limited clinical studies, and a complete safety profile is not established for general use. Semax is not approved by the FDA and is handled as a research compound. Confirm the legal status of Semax in your jurisdiction before purchase.
Reminder: PrymaLab Semax is sold strictly for in-vitro and non-human laboratory research. It is not a drug, supplement, or medical device and must not be administered to humans or animals.
Need research-grade Semax at a defined concentration?
PrymaLab supplies Semax as a preloaded 3ml autoinjector pen at 1mg/ml, research-use-only, with transparent sourcing and batch traceability.
Frequently Asked Questions
What is Semax?
Semax is a synthetic heptapeptide based on the ACTH(4-10) fragment of adrenocorticotropic hormone, studied in research for nootropic and neuroprotective pathways. PrymaLab supplies it as a research-use-only 3ml autoinjector pen at 1mg/ml for in-vitro and non-human study. It is not for human or veterinary use.
What Semax benefits are studied in research?
In animal and in-vitro models, Semax has been studied for nootropic and neuroprotective pathways, including BDNF and NGF expression and attention/stress-adaptation research. These are preclinical observations only; no human therapeutic benefit is claimed and no human dosing is provided.
Does Semax have side effects?
Reported Semax side effects come from experimental and limited clinical studies, and a complete safety profile is not established for general use. As a research-use-only compound, Semax should be handled only by qualified researchers under laboratory controls.
How many mg of Semax is used in studies?
Figures such as ‘how many mg of Semax a day’ refer to controlled research or clinical study designs, not to this research material. PrymaLab supplies a 1mg/ml reference concentration and provides no human dosing guidance.
What is N-acetyl Semax amidate?
N-acetyl Semax amidate is a modified variant of Semax that appears in the research literature, studied for similar nootropic pathways with altered stability. PrymaLab’s product is Semax supplied at 1mg/ml for research use; confirm the exact compound on the Certificate of Analysis.
Semax vs Selank — what is the difference?
Semax is an ACTH(4-10) analog more often studied for nootropic/neuroprotective pathways, while Selank is a tuftsin-analog heptapeptide more often studied for anxiolytic pathways. Both are Russian-developed research peptides. PrymaLab supplies each as a research-use-only 3ml pen at 1mg/ml.
Where can researchers buy Semax for research?
Qualified researchers can obtain Semax for research-use-only directly from PrymaLab at prymalab.net, supplied in the preloaded 3ml autoinjector pen format at 1mg/ml.
References & Further Reading
- PubChem Compound Summary, Semax. National Library of Medicine. pubchem.ncbi.nlm.nih.gov/compound/Semax.
- Dolotov, O.V., et al. (2006). Semax, an ACTH(4-10) analogue, regulates BDNF expression in rat brain — preclinical research.
- Medvedeva, E.V., et al. (2014). Semax and neuroprotection: gene-expression research reviews.
- Lau, J.L., & Dunn, M.K. (2018). Therapeutic peptides: historical perspectives and development trends. Bioorganic & Medicinal Chemistry, 26(10), 2700–2707.
- USP General Chapter <1225>. Validation of Compendial Procedures (HPLC purity-testing principles). United States Pharmacopeia.
Related research pages on PrymaLab: Selank research pen · What is a peptide? · All research peptides
Final disclaimer: This product description is for educational and informational purposes only and is not medical advice. The compounds described by PrymaLab — including BPC-157, TB-500, NAD+, PT-141 (bremelanotide), Selank, and Semax — are sold strictly as research-use-only materials for in-vitro and non-human laboratory study. They are not approved by the FDA for human or veterinary therapeutic use, and statements about their effects have not been evaluated by the FDA. Nothing here is a recommendation to purchase, possess, or administer any compound to humans or animals.
Always consult a licensed professional and verify the legal status of any compound in your jurisdiction before purchase. PrymaLab supplies these materials for qualified researchers only and assumes no responsibility for misuse.
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