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Research compound · not FDA-approved

Selank

Selank is a peptide seven amino acids long. It is a small immune fragment called tuftsin, with a tail added to slow its breakdown.

What matters first

Why people look it up
Sellers market it for anxiety, stress and calm focus.
What the evidence shows
Russian groups gave it to patients with anxiety disorders and compared it with two older sedatives. Those studies never said how much anyone received. No source gives a human dose. English reviews describe it as well tolerated, but they trace that claim to an experiment in rats.
Dose status
No completed controlled human trial has shown which dose works for Selank. A few people may have received it in small reports, but that cannot show which dose works. The sections below separate study findings from what people report using.

Medically reviewed by Kenneth Montecillo, MD2026-09-07open the primary sources

What is known about Selank

Selank is a seven-amino-acid peptide based on the immune fragment tuftsin. Russian groups compared it with older sedatives in people with anxiety disorders. The available study summaries report symptoms and tolerability but do not state how much Selank each person received. Those reports cannot supply the missing dose or a full long-term safety profile.

Selank research and regulatory details: evidence quality, approval status, doses, handling, and presentation.
TopicValue
Strongest sourcelimited human data
FDA approvalNot FDA-approved
Typical vials10 mg

Every row links back to a source listed below. These facts are for reference, not a personal recommendation.

What the evidence for Selank is

People have received this compound in a documented setting, or it has approval outside the United States. The available human evidence is still too limited to show a clear dose-and-result pattern for US use.

limited human data
What it establishes
It shows that people have received it and that some human information exists.
What it does not establish
It does not prove that the same dose is appropriate in the United States or that uncommon and long-term risks are known.

Check the country, study size and reason it was used. Do not treat limited human data as an FDA-approved schedule.

Evidence snapshot and shareable image

Evidence snapshot

Foreign approval or limited human data

The fastest way to see what kind of evidence this page is built on.

Regulation
Not FDA-approvedNo US prescribing label
Dose source
No dose listedSee the guide for evidence limits
Safety evidence
No safety findings listedAn empty list does not establish safety
Sources
5 cited sourcesMedical review complete · 2026-09-07
Open the shareable evidence image
Selank at a glance: foreign approval or limited human data, dosing basis, regulatory status, safety coverage, and cited-source count. These details summarize the available sources; they are not treatment recommendations.

Where Selank is in clinical trials

No trial of this compound is registered on ClinicalTrials.gov.

That is worth sitting with. Nobody has registered a study to find out whether Selank works in people, so no result is coming and no date is worth waiting for. Sellers are not waiting for that work either.

A registered study means a sponsor filed a plan and started enrolling. It is not evidence the drug works, and most drugs tested in people never reach a pharmacy. Sponsors write and update these sources themselves; the National Library of Medicine publishes them without checking them.

ClinicalTrials.gov · retrieved 2026-09-27

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Regulatory status

Selank is reported to be registered in Russia as an anxiety treatment, and that could not be confirmed at the register itself.

Every English source stating it traces back to a study in mice. FDA has approved nothing under this name and holds no label for it. No Selank study appears on any trial registry.

English reviews that describe a human side-effect profile for it cite a rat experiment. Material sold under this name has been recovered in seized preparations, and no regulator anywhere has examined what is in a vial.

Full regulatory tracker →

Where to go next on Selank

The related pages keep each topic with its evidence.

The selank safety evidence that does not exist yet

No boxed warning applies to selank, which reflects the review it has not had.

Selank concentration in the selank reconstitution calculator

The concentration in mg/mL for every selank vial and water pairing, printed in full.

Everything sold for anxiety and depression, including selank

The selank abstracts report outcomes but omit the dose, including Selank

Mixing math for any vial, not just selank

One calculator for every vial on this site, with selank as one example

What backs the selank numbers, and what backs the rest

Every row states whether a label, a trial or nothing stands behind it, including Selank

Which compounds are still in trials besides selank

Compounds with no registered trial are counted as exactly that, including selank

Primary regulatory documents, including selank

Every URL was fetched and live on its retrieval date, selank or otherwise.

Explore the research behind selank and other compounds

Explore approval status and published research related to selank.

Why some selank values are missing on purpose

An absent value means no source carries one, including selank

Safety notes

  • No published source states any quantity of this peptide given to any person, in any unit. The studies below were run and published without printing a dose
  • Human studies do exist. Sixty-two patients with generalized anxiety disorder and neurasthenia were tested against an older sedative. Sixty more with anxiety and somatoform disorders were tested against another. Seventy took part in a combined-treatment design, and 52 healthy volunteers in a brain-imaging study
  • The only human duration figure found anywhere is 14 days, in a study that measured immune signals rather than anxiety
  • The route in people is unresolved. The one English-language human study says the peptide was injected, not given into the nose, and its full text is not open
  • Small human studies assessed tolerability, including a comparison with phenazepam and a combined-treatment study. Their abstracts do not provide a complete adverse-event rate table or establish long-term safety
  • One frequently quoted list of side effects belongs to the sedative it was tested alongside, not to this peptide. The study found the peptide reduced that drug’s effects
  • Two 2026 peer-reviewed reviews make claims their own cited sources do not support. Those claims cover its regulatory status and its effect on serotonin, dopamine and brain growth factor
  • It has never been registered on a trial registry anywhere
  • The quantities that do exist are from animals: 200 to 3000 micrograms per kilogram in mice, and 0.3 milligrams per kilogram in rats. Neither converts to a human dose
  • It has been recovered in seized pharmaceutical preparations alongside Semax, and is sold online as powder for injection and as nasal sprays

Questions about Selank

Is Selank FDA-approved?

No. There is no prescribing label for it, so no approved dose exists — the regulatory status section above has the detail.

How is Selank taken?

No completed controlled human trial has established a dose, frequency, or route, so no human schedule is published.

How does Selank differ from the other compounds in this class?

Selank has been studied in people, but it works through a different system from GLP-1 and amylin drugs. Its doses and results are not directly comparable with theirs.

What is not known about Selank?

It does not prove that the same dose is appropriate in the United States or that uncommon and long-term risks are known.

5primary sources, each with the day we read it — open the documents used on this page