Selank
A Calming Peptide for an Overstimulated Nervous System
Selank is a small peptide we reach for when someone's nervous system is running too hot. It is calming without being sedating, which is an unusual and useful combination. It comes from the same Russian research tradition as Semax, its close cousin, and where Semax tends to lift and sharpen, Selank tends to settle and steady.
We like Selank, and we use it often, so this page leans on real experience. We will also be straight about the evidence: most of the published research and clinical use is Russian, where Selank is actually an approved anxiety medicine, and there are not yet large Western trials. That is the honest picture, and it is a good peptide within it.
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What we've seen in practice
Selank has become one of our dependable calming tools. Dr. Koniver describes it as the chemical cousin of Semax: Semax is uplifting and helps with focus, while Selank works on the GABA system, the brain's main calming signal, and gently puts the brakes on an overactive nervous system. The key point he makes is that it calms without sedating. It is not going to put you to sleep or dull you, but it helps you transition down out of a wound-up state, which is exactly what many people need in a world of constant digital stimulation.
Because of that, Selank shows up in several of the combinations we use. In our sleep approach, Dr. Koniver finds it is often the component that helps people fall asleep the fastest, settling the mind so rest can begin. Paired with Semax, it gives what he calls a clean, calm focus, an option some patients prefer when they want to concentrate without the jittery edge of stimulants. And it is one of the three peptides in a nasal combination we use for desire and bonding, alongside oxytocin and PT-141. It works well as a nasal spray for a quick, calming effect, and it can also be given by injection.
Just as important, it has been easy to like. Dr. Koniver describes it as very safe and very well tolerated, with a calming quality that patients consistently appreciate and, unlike sedatives, without dependence. One more honest note belongs here: Selank was pulled from the compounding supply in the fall of 2023 and then brought back in 2026, so after a stretch when we could not offer it, it is available to us again.
Selank at a glance
A seven-amino-acid peptide (Thr-Lys-Pro-Arg-Pro-Gly-Pro), a stable analog of the natural immune peptide tuftsin, and the calming cousin of Semax[1]
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Calm and anxiety relief without sedation, gentler focus (paired with Semax), sleep onset, and as part of a libido and bonding combination
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Real but mostly Russian: preclinical and mechanistic work plus Russian clinical use, where it is an approved anxiety medicine; no large Western trials[1,5]
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As a nasal spray or by injection
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Thr-Lys-Pro-Arg-Pro-Gly-Pro, formula C33H57N11O9, about 751.9 g/mol[6]
Not FDA-approved; withdrawn from the restricted Category 2 list in April 2026, so it is compoundable again; approved for anxiety in Russia; not listed by WADA
A dependable, very well-tolerated calming peptide we use on its own and in our sleep, focus, and bonding combinations. See what we have seen in practice above
C37H51N11O9
C33H57N11O9 · 751.9
The reference's formula does not add up to the actual peptide. We print the correct one.
Where Selank comes from
Selank was developed in Russia, at a Russian Academy of Sciences laboratory (the Institute of Molecular Genetics) working alongside a pharmacology institute. Its starting point was tuftsin, a small natural peptide that is a fragment of the antibody molecule IgG and has immune-regulating activity. Tuftsin on its own breaks down almost immediately in the body, so researchers added a short Pro-Gly-Pro tail to make a stable, longer-lasting version. That stabilized peptide is Selank.
It belongs to a small family of Russian neuropeptides that also includes Semax, which is already in our directory. The two are designed as a pair of sorts: Semax on the activating, focus-and-clarity side, Selank on the calming, steadying side. That is why we often talk about them, and sometimes use them, together.
Semax
Selank
How Selank works
Selank acts on several systems at once, which is typical for these small signaling peptides.
Its main anti-anxiety effect comes through the GABA system, the same inhibitory signaling that benzodiazepines and alcohol act on, but it calms this way without the sedation, dependence, or next-day fog. [1,2]
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Selank also influences serotonin and dopamine signaling and can raise BDNF, a growth factor that supports resilient, adaptable brain circuits, fitting its steadying effect on mood under stress. [3]
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Built from tuftsin, Selank also has immune-modulating activity and effects on inflammation-related signaling, a reminder that it started life on the immune side. [4]
A promising, plausibly effective calming peptide with a real but geographically narrow evidence base [1,5].
What the research shows
We want to be clear-eyed about the evidence, because it is genuinely interesting and genuinely limited at the same time.
Selank has a real body of research, but it is concentrated in Russia. There is solid preclinical work in animals and in cells showing the GABAergic, mood, and BDNF effects, and there is Russian clinical work in anxiety, including comparisons with a benzodiazepine that found similar calming with a gentler side-effect profile. In fact, Selank is an approved treatment for generalized anxiety disorder in Russia, which is a meaningful mark of real-world use. What is missing is large, independent, Western randomized trials, and the published human work tends to be shorter-term. So the honest reading is a promising, plausibly effective calming peptide with a real but geographically narrow evidence base.
Mechanism (GABA, mood, BDNF)
Preclinical and cell studies
Calming GABAergic action, serotonin and BDNF effects
Well characterized in the lab [1,2,3]
Anxiety in people
Russian clinical studies; approved in Russia for anxiety
Calming comparable to a benzodiazepine, with fewer side effects
Real clinical use, mostly Russian
Large Western trials
None
Not yet independently confirmed at scale
A genuine gap
Our clinical experience
Regular use, several combinations
Reliable calm without sedation, very well tolerated
Clinical observation, not a trial
How strong is the evidence
A real mechanism and genuine Russian clinical use (including approval for anxiety there), with our own experience; the gap is large Western trials.
Selank has been reassuringly easy to use. In our experience it is very safe and very well tolerated, its defining feature is that it calms without sedating, and it does not carry the dependence or withdrawal that come with benzodiazepines. The Russian clinical record is consistent with that favorable tolerability.
The honest limits are the familiar ones for a peptide like this: the human safety data is mostly Russian and short-term, so long-term Western data is thin, and because it is compounded, the quality of the product matters. We avoid it in pregnancy and breastfeeding for lack of data, and as with everything we offer, it belongs under physician supervision.
Regulatory status
Regulatory information current as of 13 August 2026. This is a summary, not legal or medical advice, and status can change.
Russia
Approved as a medicine for generalized anxiety disorder.
United States
AVAILABLE AGAIN
Not FDA-approved. Selank was placed on a restricted federal compounding list (Category 2) in the 2023 review, then withdrawn from that restricted list in April 2026, so it can once again be compounded under standard pharmacy rules. This is why it was unavailable for a stretch and is back now. Verify current status.
Sport (WADA)
NOT LISTED
Not specifically named on the WADA prohibited list. Anti-doping rules change, so any competing athlete should confirm current status with their governing body.
Everywhere else
Availability and quality vary by source and jurisdiction.
Regulatory information current as of 13 August 2026. Verify status at publication.
Selank, answered plainly
A small calming peptide (seven amino acids, built from the natural peptide tuftsin), developed in Russia and closely related to Semax. It eases anxiety and overstimulation without sedation [1].
It works through the same calming GABA system that benzodiazepines use, but without the sedation, the mental dullness, or the dependence. It steadies rather than knocks you out.
Everyday calm and stress, gentler focus when paired with Semax, help falling asleep as part of our sleep combination, and as one component of a nasal desire-and-bonding combination.
In our experience it has been very safe and well tolerated, without dependence. The main caveat is that the human evidence is mostly Russian and short-term. We avoid it in pregnancy and breastfeeding.
Yes. It was off the compounding menu for a while after 2023, but it was brought back in 2026 and we are able to offer it again.
Related in this directory
References
- Volkova A, Shadrina M, Kolomin T, et al. Selank Administration Affects the Expression of Some Genes Involved in GABAergic Neurotransmission. Front Pharmacol. 2016;7:31. PMID 26924987.
- Filatova E, Kasian A, Kolomin T, et al. GABA, Selank, and Olanzapine Affect the Expression of Genes Involved in GABAergic Neurotransmission in IMR-32 Cells. Front Pharmacol. 2017;8:89. PMID 28293190.
- Kolik LG, Nadorova AV, Antipova TA, et al. Selank, Peptide Analogue of Tuftsin, Protects Against Ethanol-Induced Memory Impairment by Regulating BDNF Content in the Hippocampus and Prefrontal Cortex in Rats. Bull Exp Biol Med. 2019;167(5):641-644. PMID 31625062.
- Kolomin T, Morozova M, Volkova A, et al. The temporary dynamics of inflammation-related genes expression under tuftsin analog Selank action. Mol Immunol. 2014;58(1):50-55. PMID 24291245.
- Panikratova YR, Lebedeva IS, Sokolov OY, et al. Functional Connectomic Approach to Studying Selank and Semax Effects. Dokl Biol Sci. 2020;490(1):9-11. PMID 32342318.
- Molecular data: Selank (Thr-Lys-Pro-Arg-Pro-Gly-Pro), PubChem CID 11765600, formula C33H57N11O9, molecular weight 751.9 g/mol.
This page is for informational and educational purposes and does not constitute medical advice, diagnosis, or treatment. Selank is not approved by the FDA for any use in the United States; its clinical use and approval for anxiety are in Russia, and its broader human evidence base is limited and largely Russian. Statements describing how Dr. Koniver and the Koniver Wellness team use Selank reflect clinical experience and judgment, which is not the same as controlled clinical evidence. Nothing here is a substitute for consultation with a qualified healthcare provider. Peptide therapy at Koniver Wellness is provided under physician supervision after appropriate screening, and the availability of any given peptide depends on its regulatory and supply status.
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