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Noopept

Also known as: N-phenylacetyl-L-prolylglycine ethyl ester, GVS-111, Omberacetam

Noopept is a potent dipeptide-derived nootropic from Russia, structurally related to piracetam but estimated to be 1,000 times more potent by mass. It enhances memory consolidation, learning, and recall while providing neuroprotection via BDNF and NGF upregulation.

Half-Life

~5–10 minutes but metabolite (CPG) effects last hours

Route

Oral, Sublingual, Intranasal

Category

Cognitive Enhancement

Studies

50 references

Key Benefits

  • Enhances memory formation and recall
  • Improves learning speed and cognitive processing
  • Neuroprotective via BDNF/NGF upregulation
  • Anxiolytic at low-to-moderate doses
  • Improves verbal fluency and information processing
  • Antioxidant (reduces oxidative damage in neurons)
  • May improve cognitive symptoms of mild cognitive impairment

Mechanism of Action

Noopept is metabolized to cycloprolylglycine (CPG) in the body, which activates AMPA/NMDA glutamate receptors and enhances long-term potentiation (LTP) — the cellular basis of memory formation. It also upregulates BDNF (brain-derived neurotrophic factor) and NGF (nerve growth factor), promoting neuronal survival and synaptic plasticity. Noopept also modulates alpha brain wave activity, facilitates inter-hemispheric transfer, and has anxiolytic effects at moderate doses via stimulation of inhibitory GABA-A receptors.

Dosing Protocols

Standard Cognitive Protocol

Dose
10–30 mg
Frequency
1–2x daily
Timing
Morning and/or midday; avoid evening (stimulating)
Cycle
56 days (standard Russian protocol), then 4 week break

Sublingual fastest onset; may stack with a choline source (Alpha-GPC/CDP-Choline) to prevent headaches

Microdose Nootropic Protocol

Dose
5–10 mg
Frequency
3–5x per week
Timing
Morning
Cycle
Indefinite with 1-week monthly breaks

Lower doses often reported as more anxiolytic; higher doses more stimulating

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Side Effects

  • Headaches (choline depletion — pair with choline source)
  • Irritability or anxiety at high doses
  • Overstimulation
  • Rare: brain fog with chronic use
  • Possible tolerance development

Contraindications

Avoid with hypersensitivity to racetams. Use with caution in bipolar disorder (stimulatory effects). Not for pregnant/breastfeeding. Avoid high doses in epilepsy.

Storage

Store powder at room temperature in airtight container away from moisture and light. Very stable compound. Solutions should be stored at 4°C.

  1. 1.
    A Mini-Review on Unlocking Cognitive Enhancement: An Innovative Strategy for Optimal Brain Functions

    Vikal A, Maurya R, Patel BB, Patel P, Kumar M, Kurmi BD · Central nervous system agents in medicinal chemistry · 2025PubMed Verified

  2. 2.
  3. 3.
    Physicochemical and structural analysis of N-phenylacetyl-L-prolylglycine ethyl ester (Noopept) - An active pharmaceutical ingredient with nootropic activity

    Araj SK, Szeleszczuk Ł, Gubica T, Zielińska-Pisklak M, Bethanis K, Christoforides E et al. · Journal of pharmaceutical and biomedical analysis · 2025PubMed Verified

  4. 4.
    Characterization and prebiotic potential of polysaccharides from Rosa roxburghii Tratt pomace by ultrasound-assisted extraction

    Chen ZH, Yuan XH, Tu TT, Wang L, Mao YH, Luo Y et al. · International journal of biological macromolecules · 2024PubMed Verified

  5. 5.
    Effects of noopept on ocular, pancreatic and renal histopathology in streptozotocin induced prepubertal diabetic rats

    Gurbuz P, Duzova H, Taslidere AC, Gul CC · Biotechnic & histochemistry : official publication of the Biological Stain Commission · 2023PubMed Verified

  6. 6.
    Intranasal Administration of Forskolin and Noopept Reverses Parkinsonian Pathology in PINK1 Knockout Rats

    Dagda RK, Dagda RY, Vazquez-Mayorga E, Martinez B, Gallahue A · International journal of molecular sciences · 2022PubMed Verified

  7. 7.
    Effect of nootropic dipeptide noopept on CA1 pyramidal neurons involves α7AChRs on interneurons in hippocampal slices from rat

    Kondratenko RV, Povarov IS, Kolbaev SN, Derevyagin VI, Ostrovskaya RU, Gudasheva TA et al. · Neuroscience letters · 2022PubMed Verified

  8. 8.
    Noopept Attenuates Diabetes-Mediated Neuropathic Pain and Oxidative Hippocampal Neurotoxicity via Inhibition of TRPV1 Channel in Rats

    Düzova H, Nazıroğlu M, Çiğ B, Gürbüz P, Akatlı AN · Molecular neurobiology · 2021PubMed Verified

  9. 9.
    QbD-driven development of dissolving microneedle patch loaded with ultradeformable liposomes encapsulated Noopept: Exploring a patient friendly, once-daily option to manage dementia

    Srivastava PK, Thakkar HP · European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences · 2021PubMed Verified

  10. 10.
  11. 11.
  12. 12.
    Cognitive Enhancer Noopept Activates Transcription Factor HIF-1

    Zainullina LF, Ivanova TV, Sadovnikov SV, Vakhitova YV, Seredenin SB · Doklady. Biochemistry and biophysics · 2020PubMed Verified

  13. 13.
    The scoop on brain health dietary supplement products containing huperzine A

    Crawford C, Wang YH, Avula B, Bae JY, Khan IA, Deuster PA · Clinical toxicology (Philadelphia, Pa.) · 2020PubMed Verified

  14. 14.
    Neuroprotective Dipeptide Noopept Prevents DNA Damage in Mice with Modeled Prediabetes

    Ostrovskaya RU, Yagubova SS, Zhanataev AK, Anisina EA, Gudasheva TA, Durnev AD · Bulletin of experimental biology and medicine · 2019PubMed Verified

  15. 15.
    MANAGEMENT OF AMNESTIC AND BEHAVIORAL DISORDERS AFTER KETAMINE ANESTHESIA

    Belenichev I, Burlaka B, Puzyrenko A, Ryzhenko O, Kurochkin M, Yusuf J · Georgian medical news · 2019PubMed Verified

  16. 16.
    Effects of noopept on cognitive functions and pubertal process in rats with diabetes

    Gürbüz P, Düzova H, Yildiz A, Çakan P, Kaya GB, Bağ HGG et al. · Life sciences · 2019PubMed Verified

  17. 17.
    Drug with Neuroprotective Properties Noopept Does Not Stimulate Cell Proliferation

    Zainullina LF, Ivanova TV, Ostrovskaya RU, Gudasheva TA, Vakhitova YV, Seredenin SB · Bulletin of experimental biology and medicine · 2019PubMed Verified

  18. 18.
    Novel Technologies for Dipeptide Drugs Design and their Implantation

    Gudasheva TA, Ostrovskaya RU, Seredenin SB · Current pharmaceutical design · 2018ReviewPubMed Verified

  19. 19.
    Effect of Noopept on Dynamics of Intracellular Calcium in Neurons of Cultured Rat Hippocampal Slices

    Kolbaev SN, Aleksandrova OP, Sharonova IN, Skrebitsky VG · Bulletin of experimental biology and medicine · 2018PubMed Verified

  20. 20.
    Dipeptide Piracetam Analogue Noopept Improves Viability of Hippocampal HT-22 Neurons in the Glutamate Toxicity Model

    Antipova TA, Nikolaev SV, Ostrovskaya PU, Gudasheva TA, Seredenin SB · Bulletin of experimental biology and medicine · 2016PubMed Verified

  21. 21.
    Molecular Mechanism Underlying the Action of Substituted Pro-Gly Dipeptide Noopept

    Vakhitova YV, Sadovnikov SV, Borisevich SS, Ostrovskaya RU, A Gudasheva T, Seredenin SB · Acta naturae · 2016PubMed Verified

  22. 22.
    Neuroprotective Effects of Peptides during Ischemic Preconditioning

    Zarubina IV, Shabanov PD · Bulletin of experimental biology and medicine · 2016PubMed Verified

  23. 23.
    Nootropic dipeptide noopept enhances inhibitory synaptic transmission in the hippocampus

    Povarov IS, Kondratenko RV, Derevyagin VI, Ostrovskaya RU, Skrebitskii VG · Bulletin of experimental biology and medicine · 2015PubMed Verified

  24. 24.
    Neuroprotective effect of novel cognitive enhancer noopept on AD-related cellular model involves the attenuation of apoptosis and tau hyperphosphorylation

    Ostrovskaya RU, Vakhitova YV, Kuzmina USh, Salimgareeva MKh, Zainullina LF, Gudasheva TA et al. · Journal of biomedical science · 2014PubMed Verified

  25. 25.
    Noopept normalizes parameters of the incretin system in rats with experimental diabetes

    Ostrovskaya RU, Zolotov NN, Ozerova IV, Ivanova EA, Kapitsa IG, Taraban KV et al. · Bulletin of experimental biology and medicine · 2014PubMed Verified

  26. 26.
    Comparative activity of proline-containing dipeptide noopept and inhibitor of dipeptidyl peptidase-4 sitagliptin in a rat model of developing diabetes

    Ostrovskaya RU, Ozerova IV, Gudascheva TA, Kapitsa IG, Ivanova EA, Voronina TA et al. · Bulletin of experimental biology and medicine · 2014PubMed Verified

  27. 27.
    Efficiency of noopept in streptozotocin-induced diabetes in rats

    Ostrovskaya RU, Ozerova IV, Gudascheva TA, Kapitsa IG, Ivanova EA, Voronina TA et al. · Bulletin of experimental biology and medicine · 2013PubMed Verified

  28. 28.
    Neuroprotective and nootropic drug noopept rescues α-synuclein amyloid cytotoxicity

    Jia X, Gharibyan AL, Öhman A, Liu Y, Olofsson A, Morozova-Roche LA · Journal of molecular biology · 2011PubMed Verified

  29. 29.
    Effects of nootropics on the EEG in conscious rats and their modification by glutamatergic inhibitors

    Vorobyov V, Kaptsov V, Kovalev G, Sengpiel F · Brain research bulletin · 2011PubMed Verified

  30. 30.
    Novel nootropic dipeptide Noopept increases inhibitory synaptic transmission in CA1 pyramidal cells

    Kondratenko RV, Derevyagin VI, Skrebitsky VG · Neuroscience letters · 2010PubMed Verified

  31. 31.
    Noopept reduces the postischemic functional and metabolic disorders in the brain of rats with different sensitivity to hypoxia

    Zarubina IV, Shabanov PD · Bulletin of experimental biology and medicine · 2009PubMed Verified

  32. 32.
    Noopept stimulates the expression of NGF and BDNF in rat hippocampus

    Ostrovskaya RU, Gudasheva TA, Zaplina AP, Vahitova JV, Salimgareeva MH, Jamidanov RS et al. · Bulletin of experimental biology and medicine · 2008PubMed Verified

  33. 33.
  34. 34.
    Noopept efficiency in experimental Alzheimer disease (cognitive deficiency caused by beta-amyloid25-35 injection into Meynert basal nuclei of rats)

    Ostrovskaya RU, Belnik AP, Storozheva ZI · Bulletin of experimental biology and medicine · 2008PubMed Verified

  35. 35.
    Original nootropic drug noopept prevents memory deficit in rats with muscarinic and nicotinic receptor blockade

    Radionova KS, Belnik AP, Ostrovskaya RU · Bulletin of experimental biology and medicine · 2008PubMed Verified

  36. 36.
    Genotype-dependent characteristics of behavior in mice in cognitive tests. The effects of Noopept

    Bel'nik AP, Ostrovskaya RU, Poletaeva II · Neuroscience and behavioral physiology · 2009PubMed Verified

  37. 37.
    Immunopharmacological properties of noopept

    Kovalenko LP, Shipaeva EV, Alekseeva SV, Pronin AV, Durnev AD, Gudasheva TA et al. · Bulletin of experimental biology and medicine · 2007PubMed Verified

  38. 38.
    Dipeptide preparation Noopept prevents scopolamine-induced deficit of spatial memory in BALB/c mice

    Belnik AP, Ostrovskaya RU, Poletaeva II · Bulletin of experimental biology and medicine · 2007PubMed Verified

  39. 39.
    Studies of long-term noopept and afobazol treatment in rats with learned helplessness neurosis

    Uyanaev AA, Fisenko VP · Bulletin of experimental biology and medicine · 2006PubMed Verified

  40. 40.
    The nootropic and neuroprotective proline-containing dipeptide noopept restores spatial memory and increases immunoreactivity to amyloid in an Alzheimer's disease model

    Ostrovskaya RU, Gruden MA, Bobkova NA, Sewell RD, Gudasheva TA, Samokhin AN et al. · Journal of psychopharmacology (Oxford, England) · 2007PubMed Verified

  41. 41.
    Early postnatal effects of noopept and piracetam on declarative and procedural memory of adult male and female rats

    Trofimov SS, Voronina TA, Guzevatykh LS · Bulletin of experimental biology and medicine · 2005PubMed Verified

  42. 42.
    Relationship between changes in rat behavior and integral biochemical indexes determined by laser correlation spectroscopy after photothrombosis of the prefrontal cortex

    Romanova GA, Shakova FM, Kovaleva OI, Pivovarov VV, Khlebnikova NN, Karganov MY · Bulletin of experimental biology and medicine · 2004PubMed Verified

  43. 43.
    Effect of noopept and afobazole on the development of neurosis of learned helplessness in rats

    Uyanaev AA, Fisenko VP, Khitrov NK · Bulletin of experimental biology and medicine · 2003PubMed Verified

  44. 44.
    Cyclopropyl glycine and proline-containing preparation noopept evoke two types of membrane potential responses in synaptoneurosomes

    Lutsenko VK, Vukolova MN, Gudasheva TA · Bulletin of experimental biology and medicine · 2003PubMed Verified

  45. 45.
    GVS-111 prevents oxidative damage and apoptosis in normal and Down's syndrome human cortical neurons

    Pelsman A, Hoyo-Vadillo C, Gudasheva TA, Seredenin SB, Ostrovskaya RU, Busciglio J · International journal of developmental neuroscience : the official journal of the International Society for Developmental Neuroscience · 2003PubMed Verified

  46. 46.
    Impairment of learning and memory after photothrombosis of the prefrontal cortex in rat brain: effects of Noopept

    Romanova GA, Shakova FM, Gudasheva TA, Ostrovskaya RU · Bulletin of experimental biology and medicine · 2002PubMed Verified

  47. 47.
    Selective suppression of the slow-inactivating potassium currents by nootropics in molluscan neurons

    Bukanova JV, Solntseva EI, Skrebitsky VG · The international journal of neuropsychopharmacology · 2002PubMed Verified

  48. 48.
    Proline-containing dipeptide GVS-111 retains nootropic activity after oral administration

    Ostrovskaya RU, Mirsoev TK, Romanova GA, Gudasheva TA, Kravchenko EV, Trofimov CC et al. · Bulletin of experimental biology and medicine · 2001PubMed Verified

  49. 49.
    Neuroprotective properties of nootropic dipeptide GVS-111 in in vitro oxygen-glucose deprivation, glutamate toxicity and oxidative stress

    Andreeva NA, Stel'mashuk EV, Isaev NK, Ostrovskaya RU, Gudasheva TA, Viktorov IV · Bulletin of experimental biology and medicine · 2000PubMed Verified

  50. 50.
    Antiamnesic effect of acyl-prolyl-containing dipeptide (GVS-111) in compression-induced damage to frontal cortex

    Romanova GA, Mirzoev TK, Barskov IV, Victorov IV, Gudasheva TA, Ostrovskaya RU · Bulletin of experimental biology and medicine · 2000PubMed 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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