Research Use Only (RUO). This article is for education and shares what published science says about a research compound. It is not medical advice, and nothing here is a suggestion to use any peptide on people or animals.
Semax is a small, lab-made molecule that scientists study in neuroscience research. If you have searched 'what is Semax,' here is a plain-language answer. Semax is a peptide - a short chain of amino acids, which are the tiny building blocks that make up proteins. Because it acts on the nervous system in research settings, it is often called a neuropeptide (a peptide that signals in the brain and nerves). Dissolv Labs sells it as a Research Use Only (RUO) material. It is not a medicine, and it is not for use in people or animals.
What is Semax?
Semax is a synthetic (human-made) peptide. It is built to copy a small part of a natural body hormone called ACTH. To be exact, Semax is a fragment analog of ACTH(4-10). That means it copies amino acids 4 through 10 of the ACTH hormone, with a small extra tail added on.
That extra tail is a short piece called Pro-Gly-Pro (three amino acids: proline, glycine, proline). Scientists added this tail so the peptide is more stable and does not break down as fast. The full chain has seven amino acids, which is where the name 'Semax' comes from - 'sem' points to seven in Russian.
Where does Semax come from?
Semax was created by scientists in Russia. It was first described in the science literature in 1991. Researchers there wanted a molecule that behaved like a piece of the ACTH hormone but lasted longer in the body during their studies.
Because it started as a copy of an ACTH fragment, Semax belongs to a family of research peptides that scientists use to study how signals move in the brain and nerves. Today it is made in labs by joining amino acids together in a set order, then checking the result for purity.
What does the research say about Semax?
Most Semax research is preclinical, which means it was done in animals or in cells in a dish - not as approved human treatment. Here is what some named studies have reported. These are research findings only, not promises.
In a 2006 study in the journal Brain Research, Dolotov and colleagues reported that Semax changed the levels of a protein called BDNF (brain-derived neurotrophic factor) and its partner trkB in the hippocampus of rats. BDNF is a protein that helps nerve cells grow and stay healthy.
In a rat study on cerebral ischemia-reperfusion (a model of reduced blood flow to the brain), Medvedeva and colleagues reported brain protein changes they linked to a protective effect of Semax. In a separate report, other researchers studied Semax in an animal model of Alzheimer's disease.
All of these results come from animal or cell research. They do not show what Semax does in people, and they are not medical advice.
Is Semax FDA approved?
No. Semax is not approved by the U.S. Food and Drug Administration (FDA). It has not been reviewed or cleared as a drug in the United States. In Russia, Semax has been used as a prescription product, but that approval does not apply in the U.S.
At Dissolv Labs, Semax is sold only as a Research Use Only material. It is not sold to treat, cure, or prevent anything, and it is not for human or animal use.
How researchers store and handle Semax
Semax usually comes as a dry powder. In a lab, dry research peptides are kept cool, dry, and away from light, often in a freezer for longer storage. Once a peptide is mixed into liquid for lab work, it is kept cold and used within a limited time.
Labs often use bacteriostatic (BAC) water to dissolve dry peptides for their studies. BAC water is sterile water with a small amount of preservative that helps slow the growth of bacteria in the vial. Handling steps like these are general lab practice for keeping RUO materials stable - they are not instructions for using Semax on any living thing.
Semax vs Selank
Semax and Selank are both short synthetic research peptides that came out of Russian research, and people often compare them. They are not the same molecule. Semax is based on an ACTH fragment, while Selank is based on a natural peptide called tuftsin. Because they have different starting points, scientists study them for different signaling questions. Both are offered by Dissolv Labs as Research Use Only materials.
Semax research materials at Dissolv Labs
Dissolv Labs offers the following Research Use Only reference materials. These are for laboratory research only and are not for human or animal use.
- Semax 10mg - research peptide reference material.
- Selank 10mg - a related research peptide often compared with Semax.
- Bacteriostatic (BAC) Water 3ml - commonly used in labs to dissolve dry peptides.
Frequently asked questions
What does 'peptide' mean?
A peptide is a short chain of amino acids. Amino acids are the small building blocks that join together to make proteins. Semax is a peptide with seven amino acids.
Is Semax a natural or synthetic peptide?
Semax is synthetic, meaning it is made in a lab. It is designed to copy a small part of the natural hormone ACTH, plus a short Pro-Gly-Pro tail.
Is Semax the same as a nootropic drug?
No. Semax is a Research Use Only material, not a medicine or supplement. Any 'nootropic' or brain-related findings you read about come from animal or cell studies, not from approved human use.
The bottom line
Semax is a synthetic research peptide based on the ACTH(4-10) fragment with an added Pro-Gly-Pro tail, first described in Russia. Preclinical animal and cell studies have looked at how it affects proteins like BDNF and how it acts in brain-injury models, but it is not FDA approved and is sold by Dissolv Labs for Research Use Only. Nothing here is medical advice.
Sources
- Dolotov et al., 'Semax, an analog of ACTH(4-10) with cognitive effects, regulates BDNF and trkB expression in the rat hippocampus,' Brain Research (2006) - PubMed
- 'Brain Protein Expression Profile Confirms the Protective Effect of the ACTH(4-7)PGP Peptide (Semax) in a Rat Model of Cerebral Ischemia-Reperfusion' - PMC
- 'The Potential of the Peptide Drug Semax and Its Derivative for Correcting Pathological Impairments in the Animal Model of Alzheimer's Disease' - PMC
- Semax overview (development in Russia; not FDA approved) - Wikipedia
Disclaimer: All Dissolv Labs products are sold for Research Use Only and are not for human or veterinary use. This content is educational and is not medical advice, diagnosis, treatment guidance, or a recommendation to consume any substance.
