Selank
Also known as: TP-7, Selanc, Tuftsin Analog, Tetrapeptide Selank
Selank is a synthetic heptapeptide analog of tuftsin developed in Russia. It is a potent anxiolytic that reduces anxiety and enhances cognitive function without sedation or addiction. It is approved for clinical use in Russia for anxiety disorders.
Half-Life
Minutes (but effects persist for hours)
Route
SubQ, Intranasal
Category
Cognitive Enhancement
Studies
50 references
Key Benefits
- Reduces anxiety without sedation
- Enhances memory and learning
- Improves focus and concentration
- Stabilizes mood
- Reduces physiological stress response
- May enhance motivation
- No addiction potential or withdrawal
- Fast-acting — effects within 20–30 minutes
- Approved clinically in Russia for anxiety disorders
Mechanism of Action
Selank modulates brain-derived neurotrophic factor (BDNF) and various neurotransmitters including serotonin, dopamine, and GABA. It stabilizes enkephalins in the blood, providing anxiolytic effects while enhancing cognitive performance and memory. Unlike benzodiazepines, it does not cause sedation, tolerance, or dependence. It also modulates the IL-6 pathway and has immunomodulatory properties.
Dosing Protocols
Nasal Spray Protocol
- Dose
- 250–500 mcg
- Frequency
- 1–3 times daily
- Timing
- As needed for anxiety or before cognitively demanding tasks
- Cycle
- 2–4 weeks, then 1–2 weeks off
Intranasal delivery is most convenient. Fast onset (20–30 minutes). Can be used daily or on-demand.
Injectable Protocol
- Dose
- 250–500 mcg
- Frequency
- 1–2 times daily
- Timing
- Any time, subcutaneous
- Cycle
- 2–4 weeks
Subcutaneous injection provides slightly longer effect duration than nasal spray.
Calculate your draw volume
Enter your vial size and BAC water to get exact injection volumes
Side Effects
- Mild sedation at higher doses (paradoxical)
- Fatigue (rare)
- Irritability during discontinuation (uncommon)
Contraindications
Pregnancy or breastfeeding. Use caution if taking other psychiatric medications — consult physician.
Storage
Refrigerate nasal spray. Lyophilized powder: freeze at −20°C. Reconstituted: refrigerate, use within 2 weeks.
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Clinical Research
- 1.Cinnamophilin ameliorates testosterone-induced prostatic hyperplasia and fibrosis by regulating 5α-reductase and TGF-β/Smad signaling pathway
Han D, Chen CY, Huang X, Liu Y, Sun H, Li Y et al. · Iranian journal of basic medical sciences · 2026PubMed Verified
- 2.Therapeutic Peptides in Orthopaedics: Applications, Challenges, and Future Directions
Rahman OF, Lee SJ, Seeds WA · Journal of the American Academy of Orthopaedic Surgeons. Global research & reviews · 2026ReviewPubMed Verified
- 3.Efficiency in packed red blood management for brain tumor resection: multicenter prospective cohort study (TScoreBTR)
Contreras-Lopez L, Clavero FI, Hurtado Restrepo PA, de Arriba NP, Álvarez AD, Montes Armenteros JA et al. · Blood transfusion = Trasfusione del sangue · 2026PubMed Verified
- 4.A study of the correlation between urinary perchlorate, nitrate, thiocyanate, and serum liver function indices
Zhang W, Ling J, Lan L, Guo Q, Ruan Y, Wu D · Scientific reports · 2025PubMed Verified
- 5.Effect of perioperative ONS combined with intestinal microecology in patients with colorectal cancer: a randomized clinical trial
Liu X, Mao W, Zhao G, Liao J, Li Q, He G · Frontiers in nutrition · 2025PubMed Verified
- 6.Hepatoprotective Effects of Thymogen Analogues in Hydrazine Hepatopathy in Rats
Chulanova AA, Smakhtina AM, Mal GS, Bobyntsev II, Smakhtin MY, Mishina ES et al. · Bulletin of experimental biology and medicine · 2025PubMed Verified
- 7.The effect of different carbon materials' addition on the biomethane production from food waste
Kozłowski M, Papaj B, Sobieraj K, Świechowski K, Kosiorowska K, Białowiec A · Scientific reports · 2025PubMed Verified
- 8.Benefits of alanyl-glutamine and omega-3 PUDAs in postoperative gastroduodenal perforation patients: A single-center retrospective study
Liu X, Mao W, Zhao G, Li Q, Liao J, He G · Medicine · 2025PubMed Verified
- 9.Efficiency evaluation of wastewater treatment by three macrophytes using a pilot-constructed wetland system in Ota, Nigeria
Justin LD, Olukanni DO · Journal of water and health · 2024PubMed Verified
- 10.Taste characterization and molecular docking study of novel umami flavor peptides in Yanjin black bone Chicken meat
Yang C, Ge X, Ge C, Zhao P, Liang S, Xiao Z · Food chemistry · 2025PubMed Verified
- 11.Predictive factors of the presence of pulmonary embolism in patients with interstitial lung disease: Observational study
Shimoda M, Nunokawa H, Tanaka Y, Morimoto K, Moue I, Yoshimori K et al. · Medicine · 2024PubMed Verified
- 12.Atrial fibrillation-associated electrical remodelling in human induced pluripotent stem cell-derived atrial cardiomyocytes: a novel pathway for antiarrhythmic therapy development
Seibertz F, Rubio T, Springer R, Popp F, Ritter M, Liutkute A et al. · Cardiovascular research · 2023PubMed Verified
- 13.Increase in False-Positive Fourth-Generation Human Immunodeficiency Virus Tests in Patients With Coronavirus Disease 2019
Gudipati S, Shallal A, Peterson E, Cook B, Markowitz N · Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2023PubMed Verified
- 14.Effect of dietary inclusion of mealworm frass on growth, hematology, and serum biochemistry of sheep
Ayaz M, Khan R, Khan S, Suhail SM, Khan K, Ahmad I et al. · Tropical animal health and production · 2023PubMed Verified
- 15.RISK OF HOSPITAL MORTALITY IN CRITICALLY ILL PATIENTS WITH TRANSIENT AND PERSISTENT THROMBOCYTOPENIA: A RETROSPECTIVE STUDY
Jiang X, Zhang W, Ma X, Cheng X · Shock (Augusta, Ga.) · 2022PubMed Verified
- 16.Selank, a Peptide Analog of Tuftsin, Attenuates Aversive Signs of Morphine Withdrawal in Rats
Konstantinopolsky MA, Chernyakova IV, Kolik LG · Bulletin of experimental biology and medicine · 2022PubMed Verified
- 17.Exosomal and Non-Exosomal MicroRNAs: New Kids on the Block for Cancer Therapy
Syed SN, Brüne B · International journal of molecular sciences · 2022ReviewPubMed Verified
- 18.Improving the nutritional value and bioactivity of soybean meal in solid-state fermentation using Bacillus strains newly isolated from the gut of the termite Termes propinquus
Nualkul M, Yuangsoi B, Hongoh Y, Yamada A, Deevong P · FEMS microbiology letters · 2022PubMed Verified
- 19.Long-term Survival of Adhesively Luted Post-endodontic Restorations
Bruhnke M, Wierichs RJ, von Stein-Lausnitz M, Meyer-Lückel H, Beuer F, Naumann M et al. · Journal of endodontics · 2022PubMed Verified
- 20.Sedative-Hypnotic Agents That Impact Gamma-Aminobutyric Acid Receptors: Focus on Flunitrazepam, Gamma-Hydroxybutyric Acid, Phenibut, and Selank
Doyno CR, White CM · Journal of clinical pharmacology · 2021PubMed Verified
- 21.The effects of thickness and shade on translucency parameters of contemporary, esthetic dental ceramics
Pop-Ciutrila IS, Ghinea R, Dudea D, Ruiz-López J, Pérez MM, Colosi H · Journal of esthetic and restorative dentistry : official publication of the American Academy of Esthetic Dentistry ... [et al.] · 2021PubMed Verified
- 22.Morphological Changes in the Large Intestine of Rats Subjected to Chronic Restraint Stress and Treated with Selank
Mukhina AY, Mishina ES, Bobyntsev II, Medvedeva OA, Svishcheva MV, Kalutskii PV et al. · Bulletin of experimental biology and medicine · 2020PubMed Verified
- 23.The Influence of Selank on the Level of Cytokines Under the Conditions of "Social" Stress
Leonidovna YA, Aleksandrovna SM, Aleksandrovna TA, Aleksandrovna BO, Fedorovich MN, Aleksandrovna AL · Current reviews in clinical and experimental pharmacology · 2021PubMed Verified
- 24.Syntheses, Reactivities, Characterization, and Crystal Structures of Dipalladium Complexes Containing the 1,3-pyrimidinyl Ligand: Structures of [Pd(PPh(3))(Br)](2)(μ,η(2)-C(4)H(3)N(2))(2), [Pd(Br)](2)(μ,η(2)-Hdppa)(2), and [{Pd(PPh(3))(CH(3)CN)}(2)(μ,η(2)-C(4)H(3)N(2))(2)][BF(4)](2)
Wang HF, Yih KH, Lee GH · Molecules (Basel, Switzerland) · 2020PubMed Verified
- 25.Functional Connectomic Approach to Studying Selank and Semax Effects
Panikratova YR, Lebedeva IS, Sokolov OY, Rumshiskaya AD, Kupriyanov DA, Kost NV et al. · Doklady biological sciences : proceedings of the Academy of Sciences of the USSR, Biological sciences sections · 2020PubMed Verified
- 26.Warming Effects on Periphyton Community and Abundance in Different Seasons Are Influenced by Nutrient State and Plant Type: A Shallow Lake Mesocosm Study
Hao B, Wu H, Zhen W, Jo H, Cai Y, Jeppesen E et al. · Frontiers in plant science · 2020PubMed Verified
- 27.Contrasting effects of high-starch and high-sugar diets on ruminal function in cattle
Francesio A, Viora L, Denwood MJ, Tulley W, Brady N, Hastie P et al. · The Journal of dairy research · 2020PubMed Verified
- 28.Effects of Huatan Tongluo decoction on vascular endothelial growth factor receptor 2 expression in synovial tissues of rats with collagen-induced arthritis
Chen J, Qiu M, Li Y, Zhang Q, Zhang Y, Lin S et al. · Journal of traditional Chinese medicine = Chung i tsa chih ying wen pan · 2019PubMed Verified
- 29.The occurrence of putative cognitive enhancing research peptides in seized pharmaceutical preparations: An incentive for controlling agencies to prepare for future encounters of the kind
Vanhee C, Francotte A, Janvier S, Deconinck E · Drug testing and analysis · 2020PubMed Verified
- 30.Prevalence of Clinically Significant Differences in Sodium Measurements Due to Abnormal Protein Concentrations Using an Indirect Ion-Selective Electrode Method
Katrangi W, Baumann NA, Nett RC, Karon BS, Block DR · The journal of applied laboratory medicine · 2019PubMed Verified
- 31.Selank, Peptide Analogue of Tuftsin, Protects Against Ethanol-Induced Memory Impairment by Regulating of BDNF Content in the Hippocampus and Prefrontal Cortex in Rats
Kolik LG, Nadorova AV, Antipova TA, Kruglov SV, Kudrin VS, Durnev AD · Bulletin of experimental biology and medicine · 2019PubMed Verified
- 32.Effect of Selank on Morphological Parameters of Rat Liver in Chronic Foot-Shock Stress
Fomenko EV, Bobyntsev II, Ivanov AV, Belykh AE, Andreeva LA, Myasoedov NF · Bulletin of experimental biology and medicine · 2019PubMed Verified
- 33.State of Colon Microbiota in Rats during Chronic Restraint Stress and Selank Treatment
Mukhina AY, Medvedeva OA, Svishcheva MV, Shevchenko AV, Efremova NN, Bobyntsev II et al. · Bulletin of experimental biology and medicine · 2019PubMed Verified
- 34.Isoselenocarbonyl complexes
Cade IA , Hill AF , McQueen CMA · Dalton transactions (Cambridge, England : 2003) · 2019PubMed Verified
- 35.Investigation of the prevalence and severity of foot pad dermatitis at the slaughterhouse in fattening turkeys reared in organic production systems in Germany
Freihold D, Bartels T, Bergmann S, Berk J, Deerberg F, Dressel A et al. · Poultry science · 2019PubMed Verified
- 36.Peptide-based Anxiolytics: The Molecular Aspects of Heptapeptide Selank Biological Activity
Vyunova TV, Andreeva L, Shevchenko K, Myasoedov N · Protein and peptide letters · 2018PubMed Verified
- 37.Short- and long-term clinical impact of tissue protrusion after newer-generation drug-eluting stent implantation for acute coronary syndrome
Suzuki Y, Murata A, Murase S, Ochiumi Y, Ito T · Cardiovascular intervention and therapeutics · 2019PubMed Verified
- 38.Different Patterns in Muscular Strength and Hypertrophy Adaptations in Untrained Individuals Undergoing Nonperiodized and Periodized Strength Regimens
De Souza EO, Tricoli V, Rauch J, Alvarez MR, Laurentino G, Aihara AY et al. · Journal of strength and conditioning research · 2018RCTPubMed Verified
- 39.Performance of Roche cobas high-risk human papillomavirus (hrHPV) testing in the two most common liquid-based Papanicolaou test platforms
Fuller MY, Mody RR, Luna E, Armylagos D, Schwartz MR, Mody DR et al. · Journal of the American Society of Cytopathology · 2018PubMed Verified
- 40.Anticoagulant Effects of Arginine-Containing Peptides of the Glyproline Family (His-Phe-Arg-Trp-Pro-Gly-Pro and Thr-Lys-Pro-Arg-Pro-Gly-Pro) Revealed by Thromboelastography
Rogozinskaya EY, Lyapina MG · Bulletin of experimental biology and medicine · 2017PubMed Verified
- 41.Studying the Toxic Effects of Some Biologically Active Peptides on the Model of Mouse Embryonic Stem Cells
Kobylyanskii AG, Zolotarev YA, Andreeva LA, Grivennikov IA, Myasoedov NF · Bulletin of experimental biology and medicine · 2017PubMed Verified
- 42.Effect of Selank on Functional State of Rat Hepatocytes under Conditions of Restraint Stress
Fomenko EV, Bobyntsev II, Kryukov AA, Ivanov AV, Andreeva LA, Myasoedov NF · Bulletin of experimental biology and medicine · 2017PubMed Verified
- 43.Affective pictures processing is reflected by an increased long-distance EEG connectivity
Güntekin B, Femir B, Gölbaşı BT, Tülay E, Başar E · Cognitive neurodynamics · 2017PubMed Verified
- 44.Tuftsin - Properties and Analogs
Siebert A, Gensicka-Kowalewska M, Cholewinski G, Dzierzbicka K · Current medicinal chemistry · 2017ReviewPubMed Verified
- 45.Peptides semax and selank affect the behavior of rats with 6-OHDA induced PD-like parkinsonism
Slominsky PA, Shadrina MI, Kolomin TA, Stavrovskaya AV, Filatova EV, Andreeva LA et al. · Doklady biological sciences : proceedings of the Academy of Sciences of the USSR, Biological sciences sections · 2017PubMed Verified
- 46.Effect of Selank on Spontaneous Synaptic Activity of Rat Hippocampal CA1 Neurons
Povarov IS, Kondratenko RV, Derevyagin VI, Myasoedov NF, Skrebitsky VG · Bulletin of experimental biology and medicine · 2017PubMed Verified
- 47.GABA, Selank, and Olanzapine Affect the Expression of Genes Involved in GABAergic Neurotransmission in IMR-32 Cells
Filatova E, Kasian A, Kolomin T, Rybalkina E, Alieva A, Andreeva L et al. · Frontiers in pharmacology · 2017PubMed Verified
- 48.Peptide Selank Enhances the Effect of Diazepam in Reducing Anxiety in Unpredictable Chronic Mild Stress Conditions in Rats
Kasian A, Kolomin T, Andreeva L, Bondarenko E, Myasoedov N, Slominsky P et al. · Behavioural neurology · 2017PubMed Verified
- 49.Selank Inhibits Ethanol-Induced Hyperlocomotion and Manifestation of Behavioral Sensitization in DBA/2 Mice
Kolik LG, Nadorova AV, Seredenin SB · Bulletin of experimental biology and medicine · 2016PubMed Verified
- 50.Sleep related bradyarrhythmic events and heart rate variability in apparently healthy individuals
Çimen T, Sunman H, Erat M, Efe TH, Akyel A, Bilgin M et al. · Anatolian journal of cardiology · 2017PubMed Verified
Medical disclaimer: This information is for educational purposes only and does not constitute medical advice. Many compounds listed are research chemicals not approved for human use. Always consult a qualified healthcare professional before starting any protocol.
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