A synthetic heptapeptide derived from the immune compound tuftsin, studied for its simultaneous influence on anxiety-related pathways and cognitive function.
Selank is a synthetic peptide derived from tuftsin, a naturally occurring immune-modulating compound produced by the body. Researchers developed it by combining a tuftsin fragment with a stabilizing peptide sequence to improve its durability and bioavailability. The result is a short, 7-amino-acid chain that has been studied primarily in Russian research institutions for decades.
It's one of a genuinely unusual family of peptides that appear to influence both brain function and immune activity simultaneously — a combination that makes it particularly interesting to researchers studying the intersection of neuroscience and immunology.
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Selank sits at an interesting crossroads — it's been studied for calming effects alongside cognitive metrics, rather than one or the other. That dual research angle is relatively rare in this category of compounds.
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Selank is thought to interact with the GABAergic system — the brain's primary inhibitory network — and may also influence enkephalin breakdown. Enkephalins are endogenous peptides the brain uses to regulate pain and mood, and their duration of activity is controlled partly by enzymes that break them down quickly.
Think of the brain as a really busy office. Enkephalins are like those "do not disturb" signs people hang on their doors when they need to focus. Selank may work like a security guard who stops people from taking those signs down too quickly — so the "do not disturb" signal lasts longer, and more calm gets through.
Research Disclaimer: The following reflects published clinical and preclinical research and is not medical advice. Consult a licensed healthcare provider before making any health decisions.
Selank is registered as a pharmaceutical in Russia (0.15% nasal spray) for anxiety and cognitive disorders. Published clinical data comes primarily from Russian institutions and is documented in the Russian pharmacological literature.
Key References: Semenova TP et al. (2009). Selank anxiolytic effects. Bull Exp Biol Med. · Zozulya AA et al. (2006). Selank pharmacology review. CNS Drug Rev. · Uchakina ON et al. (2008). Selank immunomodulation. Bull Exp Biol Med.
Selank was developed at the Institute of Molecular Genetics of the Russian Academy of Sciences — it has been studied in Russian labs since the 1990s and remains one of the most researched peptides from that era.
It's derived from tuftsin, a peptide your own immune system produces naturally. Researchers took that existing biological structure and engineered it further — giving Selank a foot in both the immune and neurological worlds.
In some published studies, Selank has been examined alongside learning tasks — researchers have directly measured its effects on memory retrieval speed in laboratory settings, not just general mood or calm.
Every batch of Selank with full Certificate of Analysis documentation. Third-party HPLC verification, mass spectrometry confirmation, and sterility testing results are included with each batch.