Anxiety, nootropic claims, side effects, human studies, FDA status, prices, and global verification

Selank has small human studies. It does not have a modern evidence package.

Selank is a real seven-amino-acid peptide with two Russian-language anxiety studies, a healthy-volunteer brain-imaging experiment, and extensive preclinical work. That record is more meaningful than a seller claim, but it does not prove broad anxiety treatment, cognitive enhancement, no side effects, or the quality of an online product.

Amino acids07Tuftsin analogue
Core human papers reviewed03Two patient studies, one fMRI study
Verified registry interventions00Two fuzzy matches rejected
FDA-approved products00Exact-name search
Direct answer

There is a human anxiety signal, but the certainty is low.

Two small Russian-language active-comparator studies reported favorable anxiety outcomes. Their public English abstracts leave important questions about allocation, masking, dose, route, attrition, effect size, adverse-event reporting, and whether the studied intervention matches any current finished product.

A separate healthy-volunteer study measured short-term brain connectivity, not durable relief of an anxiety disorder or improved memory and focus. FDA says important human safety information is lacking for Selank acetate and flags potential product-related immunogenicity concerns.

Evidence summary

Read the Selank record in four fields.

This is a sourced status snapshot, not a safety score, treatment recommendation, or seller certification. Each field links back to the detailed record below.

01 Strongest human record

3 core human papers

Two small anxiety studies and one imaging experiment have important reporting limits.

Inspect the human evidence
02 What it establishes

Low-certainty anxiety signal

The record does not establish broad anxiety treatment, cognitive enhancement, or product equivalence.

Audit the popular claims
Best primary source to open firstFDA bulk-substance safety recordU.S. Food and Drug Administration
Open the primary record
Registry false-positive audit

The Selank registry search returns two records, but neither tests Selank.

Search-result count and verified intervention count are different fields. This distinction prevents two unrelated neuromodulation studies from becoming invented Selank trials.

Search output

Two fuzzy candidate records

ClinicalTrials.gov's intervention search returned two candidate records on July 21, 2026. NCT01747200 studies rhythmic transcranial magnetic stimulation, while NCT05832060 studies tDCS and tRNS electrical brain stimulation.

Repeat the registry search →
Intervention audit

Zero verified Selank records

Manual inspection of every intervention name in NCT01747200 and NCT05832060 found TMS, tDCS, and tRNS conditions, with no Selank intervention. The verified Selank intervention count is therefore zero for this search snapshot.

Search the verified peptide trial dataset →
Reusable rule

Inspect the actual intervention field

Registry search systems can use fuzzy matching, stemming, aliases, or full-record text. Always inspect the intervention field and NCT record before counting a search result as a drug trial.

Read the evidence method →
Six evidence lanes

Identity, symptoms, imaging, mechanism, safety, and market access answer different questions.

Every claim should preserve the exact peptide, chemical form, finished product, route, population, endpoint, comparator, source language, and destination.

01Molecular identity

Selank is a seven-amino-acid tuftsin analogue.

PubChem records the sequence Thr-Lys-Pro-Arg-Pro-Gly-Pro and the TP-7 synonym. Free peptide, acetate, a study intervention, nasal finished product, compounded preparation, and seller-labelled vial are not automatically the same material or exposure.

02Human anxiety studies

Two small active-comparator papers are signals, not a modern approval package.

Russian-language abstracts describe 62 patients compared with medazepam and 60 patients compared with phenazepam. They report favorable anxiety findings, but the public abstracts do not supply the complete allocation, masking, route, dose, attrition, adverse-event, protocol, or statistical record needed for a confident benefit-risk conclusion.

03Healthy-volunteer imaging

A brain-network change is not symptom relief or better cognition.

A 52-participant study measured short-term resting-state functional connectivity after Selank, Semax, or placebo. It did not establish durable improvement in diagnosed anxiety, memory, focus, productivity, sleep, or daily function.

04Mechanism and animal work

GABA, enkephalin, memory, and immune findings sit upstream of clinical outcomes.

Cell, plasma-enzyme, gene-expression, and animal experiments can generate hypotheses. They do not prove that an online product treats anxiety, works like a benzodiazepine, improves human memory, prevents infection, or has a known long-term safety profile.

05Regulatory and product safety

Nomination status, approval, formulation quality, and personal safety are separate records.

FDA's current page keeps Selank acetate in a withdrawn-nomination section while retaining concerns about immunogenicity, aggregation, impurities, and missing human safety information. Withdrawal from a nomination category is not FDA approval, a finding of safety, or validation of a finished product.

06Market and destination

A listing proves that a seller page exists, not that a medicine is authorized.

Peptide Local can compare dated US 10 mg research listings and link destination regulators. Price, stock, a certificate route, and shipping language do not establish identity, sterility, clinical benefit, prescriber authority, import permission, or legality in every location.

Claim check

What the Selank record shows, and what the claim still cannot prove.

Each row keeps a real signal beside the missing evidence, instead of replacing uncertainty with marketing confidence.

Popular claimActual recordEvidence limit

Selank treats anxiety

Two Russian-language active-comparator studies report favorable anxiety outcomes in 62 and 60 patients.

The public abstracts do not provide a large multicenter placebo-controlled evidence base, complete adverse-event tables, or enough design detail to establish a current general treatment claim.

Selank improves focus and memory

A healthy-volunteer study measured short-term functional connectivity, while rat experiments reported memory-related findings.

Neither record proves durable improvement in validated human memory, attention, learning, productivity, or daily function.

Selank works like a benzodiazepine without the downsides

Comparator studies and preclinical GABA-related findings create a plausible research question.

Mechanistic overlap and active-comparator results do not establish equal efficacy, no sedation, no withdrawal, no dependence, no interactions, or superior long-term safety.

Selank has no side effects

The small anxiety-study abstracts describe tolerability favorably but do not publish a complete event ledger in the abstract.

FDA says important human safety information is lacking and flags potential immunogenicity from aggregation and peptide-related impurities for compounded products.

Selank is antiviral or immune boosting

Laboratory and animal influenza work reported antiviral and immune-expression signals.

That evidence does not establish prevention or treatment of influenza or another infection in humans, and it does not validate an online finished product.

ClinicalTrials.gov lists Selank trials

The current fuzzy intervention search returns two candidate records.

Their intervention fields list TMS or electrical stimulation, not Selank. Search-result count is not verified intervention count.

Selank and Semax are interchangeable

One 52-participant imaging paper studied the two peptides in separate conditions and reported shared and distinct connectivity findings.

They have different sequences, source records, claims, listings, and regulatory facts. The imaging paper did not establish clinical equivalence or a winner.

Human evidence ledger

Four records, from patient outcomes to an ex vivo mechanism.

This is not a vote count. A clinical comparison, healthy-volunteer surrogate endpoint, and plasma-enzyme experiment have different strengths and cannot be pooled into one efficacy claim.

PMID 18454096Human clinical outcome

Generalized anxiety disorder and neurasthenia comparison

Identity
Selank intervention; exact chemical form not stated in the English abstract
Design
Russian-language randomized controlled trial; active comparator medazepam; Hamilton, Zung, CGI, and serum enkephalin measures
Participants
62 total; 30 Selank and 32 medazepam

The abstract reports similar anxiolytic effects and additional antiasthenic or psychostimulant signals. It does not expose the complete protocol, masking, route, dose, attrition, effect-size, or adverse-event table needed to generalize the result.

PMID 25176261Human clinical outcome

Phobic-anxiety and somatoform disorder comparison

Identity
Selank intervention; exact form and finished-product identity not stated in the English abstract
Design
Russian-language comparative clinical trial; active comparator phenazepam; allocation and masking not described in the abstract
Participants
60 total; group sizes not stated in the abstract

The abstract reports anxiety, mild nootropic, quality-of-life, and one-week persistence findings. It does not provide enough public design or event detail to establish a modern benefit-risk estimate or a no-side-effect claim.

PMID 32342318Human surrogate endpoint

Selank, Semax, and placebo resting-state fMRI study

Identity
Selank and Semax studied separately; exact forms and finished formulations not stated in the abstract
Design
Resting-state functional-connectivity scans before and 5 and 20 minutes after the assigned condition
Participants
52 healthy participants; condition group sizes not stated in the abstract

The paper reports connectivity differences involving the right amygdala and right temporal cortex. It did not measure treatment of an anxiety disorder or durable improvement in cognition or daily function.

PMID 11550013Human plasma, ex vivo

Enkephalin-degrading enzyme experiment

Identity
Selank applied to human plasma outside a treated participant
Design
Biochemical enzyme-inhibition experiment; no clinical treatment group
Participants
Human plasma source count not stated in the abstract

The abstract reports dose-dependent inhibition of enkephalin hydrolysis. An ex vivo plasma signal cannot establish anxiety relief, clinical dose-response, brain exposure, comparative efficacy, or human safety.

Evidence-market gap

US research listings are easier to find than decisive clinical evidence.

Availability and price are market observations, not medical validation. The range excludes shipping, coupons, checkout-only discounts, and rows without a confirmed stock signal.

Qualified exact-size rows

03

Three public US 10 mg research listings met the current comparison rules. Inclusion does not mean approval, recommendation, product authentication, provider certification, or lawful access in every destination.

Open every source row →
Available rows

02

Two carried an in-stock signal when checked. The third displayed a price and document sections without a captured stock label. Stock does not establish composition, concentration, sterility, fulfillment, or suitability for use.

Check source freshness →
In-stock list-price range

$34.99-$37.17

The current confirmed-stock range spans 6% from low to high before landed cost. Compare documentation access and source freshness beside price, then verify the exact product and seller.

Compare landed cost →
Current status map

Approval, compounding nomination, and country marketing status are three records.

An administrative list change is not a safety finding, and one country's warning does not answer every other destination.

United States approval

No FDA-approved Selank product found

The dated exact-name Drugs@FDA review identified no approved Selank drug record. Research listing, prescription, publication, or certificate does not substitute for an approved finished-product record.

Repeat the Drugs@FDA search →
FDA compounding history

Nomination withdrawn, safety concerns retained

FDA says the nominator intended a different bulk substance, but its current page still flags possible immunogenicity from aggregation and peptide impurities and says important human safety information is missing.

Inspect the FDA record →
South Africa

SAHPRA names Selank

SAHPRA specifically includes Selank among illegally marketed unregistered peptide products. That official warning does not authenticate a listing or decide the status of another product, seller, or destination.

Read the SAHPRA notice →
Worldwide answer

Selank status and seller verification depend on the destination and product.

South Africa has a compound-specific public warning. The US has an FDA safety and nomination record but no identified approved drug. Other destinations may require separate medicine, pharmacy, prescriber, import, advertising, and seller checks. An absent compound-specific finding is not proof of approval or legality.

Direct evidence answers

Twelve Selank questions, answered from the current record.

This is educational reporting, not medical advice, a prescription, mental-health care, or a use protocol.

01

What is Selank?

Selank is a synthetic seven-amino-acid peptide with the sequence Thr-Lys-Pro-Arg-Pro-Gly-Pro. PubChem also records TP-7 and Selanc as synonyms. That molecular identity does not make a seller vial, acetate material, compounded preparation, study intervention, or nasal finished product interchangeable. Each product still needs its own composition, concentration, formulation, source, quality, and regulatory record.

02

Does Selank work for anxiety?

Two small Russian-language active-comparator studies report favorable anxiety outcomes. One included 62 people, with 30 receiving Selank and 32 medazepam. Another included 60 people and compared Selank with phenazepam. Those signals deserve careful study, but the public English abstracts do not provide the complete masking, allocation, dose, route, attrition, event, and statistical record needed to support a broad current treatment claim.

03

Is Selank a nootropic?

Nootropic is a claim category, not proof of a clinical benefit. A 52-participant healthy-volunteer study measured short-term resting-state brain connectivity, and animal studies report learning or memory signals. Neither establishes durable improvement in validated human memory, attention, learning, productivity, school or work performance, or daily function. Seller use of the word nootropic adds no independent evidence.

04

Does Selank improve focus or memory?

The current record does not establish a reliable human focus or memory benefit. The healthy-volunteer paper used a functional-connectivity surrogate rather than a durable cognitive or functional outcome. Memory experiments identified in PubMed were performed in animals. A measured brain-network or animal-behavior change can generate a hypothesis, but it cannot substitute for a replicated human clinical outcome.

05

What are Selank side effects?

The small anxiety-study abstracts describe tolerability favorably, but they do not expose a complete adverse-event table or establish incidence rates for a current finished product. FDA says it lacks important human safety information for Selank acetate and flags potential immunogenicity related to aggregation and peptide impurities in compounded products. Long-term effects, interaction risks, formulation differences, and product-specific contamination or concentration errors remain unresolved.

06

Is Selank FDA approved?

No FDA-approved Selank drug record was identified in the dated Drugs@FDA exact-name review. FDA's current compounding safety page discusses Selank acetate, but a bulk-substance nomination or safety listing is not drug approval. An online research listing, clinician mention, prescription, certificate, or foreign-language paper also does not create FDA approval for a US finished product.

07

Was Selank removed from FDA Category 2?

FDA's current page places Selank acetate in the section for nominations withdrawn after the nominator indicated that a different bulk substance was intended. That administrative history does not mean FDA found Selank safe, effective, approved, or suitable for compounding. The same page retains concerns about aggregation, peptide-related impurities, immunogenicity, and missing human safety information.

08

Does ClinicalTrials.gov have Selank trials?

The current fuzzy intervention search returned two candidate records, but manual inspection found no Selank intervention in either record. Their intervention fields describe magnetic or electrical brain stimulation. The verified exact intervention count for this dated search is zero. That does not erase human papers indexed in PubMed because a trial registry and a publication database cover different records.

09

Is Selank legal in the United States?

There is no single yes-or-no answer for every object and activity described as Selank. FDA approval, compounding eligibility, research-material sale, prescription, product claims, import, administration, and state professional rules are different questions. The current record identifies no FDA-approved Selank medicine. Use the exact product, seller, destination, and intended transaction with official federal and state verification routes rather than relying on a generic legality claim.

10

Is Selank nasal spray the same as research Selank?

No equivalence should be assumed. A study intervention, compounded spray, seller vial, reconstituted material, acetate form, and marketed nasal product can differ in identity, concentration, excipients, device delivery, impurities, microbiological quality, storage, exposure, and labeling. A paper about one intervention cannot authenticate or validate a separate online finished product.

11

Selank vs Semax: which is better?

The current evidence does not establish a winner. Selank and Semax have different peptide sequences, claimed uses, source records, regulatory facts, and seller listings. One healthy-volunteer imaging paper studied both in separate conditions and reported shared and substance-specific connectivity findings. It did not prove clinical equivalence, superior anxiety relief, better cognition, or comparative long-term safety.

12

Can I buy Selank online?

Peptide Local records three dated US 10 mg research seller pages so readers can compare list price, stated stock, document access, shipping language, and source freshness. That market observation is not a recommendation, prescription, product authentication, safety finding, or authorization for human use. Verify the exact product category, seller, destination rules, and source evidence before any transaction.

Critical boundary

A human paper does not authenticate a product or supply a regimen.

Selank free peptide, Selank acetate, TP-7, a study intervention, compounded preparation, nasal product, seller vial, and combination with Semax can differ in composition, concentration, formulation, device, impurities, exposure, quality, and risk.

This guide does not provide dosing, reconstitution, nasal preparation, injection, cycling, stacking, anxiety treatment, medication replacement, or tapering instructions. Do not delay or replace licensed mental-health care based on a research listing or this educational record.

Primary referencesSelank compound record, PubChem CID 11765600Seven-amino-acid identity, Thr-Lys-Pro-Arg-Pro-Gly-Pro sequence, molecular formula, molecular weight, identifiers, and TP-7 synonymsNational Library of Medicine, PubChemBulk substances that may present significant safety risksCurrent Selank acetate nomination-withdrawal context, potential immunogenicity from aggregation and peptide-related impurities, and FDA's statement that important human safety information is lackingU.S. Food and Drug AdministrationDrugs@FDA approved drug databaseDated exact-name approval search route used to check whether an FDA-approved Selank drug record existsU.S. Food and Drug AdministrationClinicalTrials.gov Selank intervention searchDated fuzzy intervention search and the need to inspect intervention fields instead of treating two unrelated neuromodulation records as Selank trialsClinicalTrials.gov, National Library of MedicineSelank compared with medazepam in generalized anxiety disorder and neurastheniaRussian-language randomized controlled trial abstract describing 62 patients, 30 assigned Selank and 32 assigned medazepam, psychometric outcomes, and major reporting limitsPubMed, National Library of MedicineSelank compared with phenazepam in anxiety disordersRussian-language comparative clinical-trial abstract describing 60 patients with phobic-anxiety or somatoform disorders, claimed outcomes, and incomplete design and adverse-event detailPubMed, National Library of MedicineFunctional Connectomic Approach to Studying Selank and Semax EffectsFifty-two healthy participants across Selank, Semax, and placebo conditions, short-term resting-state functional-connectivity measurements, and the absence of a clinical anxiety or cognition endpointPubMed, National Library of MedicineSelank inhibition of enkephalin-degrading enzymesHuman-plasma enzyme experiment and the boundary between an ex vivo biochemical observation and treatment of a personPubMed, National Library of MedicineSelank effects on genes involved in GABAergic neurotransmissionPreclinical gene-expression findings and the limit on converting a possible GABA-related mechanism into benzodiazepine equivalence, clinical efficacy, or human safetyPubMed, National Library of MedicineExperimental optimization of learning and memory by SelankRat learning, memory-retention, and serotonin-metabolism experiment that cannot establish a human nootropic effectPubMed, National Library of MedicinePeptide products public informationCurrent South African warning that specifically names Selank among illegally marketed unregistered peptide productsSouth African Health Products Regulatory Authority