Noopept (GVS-111): A Peptide-Derived Nootropic
Noopept (N-phenylacetyl-L-prolylglycine ethyl ester, GVS-111) is a synthetic dipeptide nootropic developed in Russia and studied primarily for cognitive enhancement, neuroprotection, and memory improvement. It is structurally derived from the endogenous neuropeptide cycloprolylglycine and is reported to be significantly more potent per unit mass than classic racetam compounds like piracetam, with effective doses in rodent studies typically in the microgram-per-kilogram range.
Mechanism of Action
Noopept acts as a prodrug that hydrolyzes in vivo to release cycloprolylglycine, which then modulates AMPA and NMDA glutamate receptor activity. It also upregulates the expression of nerve growth factor (NGF) and brain-derived neurotrophic factor (BDNF) in the hippocampus — effects that may underlie its reported memory-enhancing and neuroprotective properties. Some research suggests it also has anxiolytic activity at low doses, though the mechanism for this is less well-characterized.
Cognitive Research Applications
Noopept is studied for its effects on memory consolidation, learning efficiency, and recovery from cognitive impairment. Animal studies have demonstrated reversal of amnesia induced by scopolamine and other anticholinergic agents. It has also been examined in models of traumatic brain injury, oxidative stress-induced neurodegeneration, and Alzheimer’s disease. Its rapid oral absorption (10–15 minutes to peak in rodents) and short half-life make it useful for acute dosing protocols in cognitive challenge designs.
Noopept Compared to Related Cognitive Compounds
Researchers often study Noopept alongside other cognitive compounds. NSI-189 (neurogenic agent) targets hippocampal neurogenesis — a fundamentally different pathway. CDP-Choline provides choline precursors for acetylcholine synthesis. Coluracetam enhances high-affinity choline uptake. Sunifiram and Unifiram are more potent AMPAkines with similar receptor targets. Together, these compounds form a useful comparative toolkit for glutamatergic and cholinergic cognitive research.
Available Research Formulations
For laboratory research use only.
