Nootropic & Cognitive · Other

Alpha-GPC (Alpha-Glycerylphosphorylcholine)

Provisional Strong Scorenootropic

Hermetica Superfood Encyclopedia

Published March 18, 2026Last updated March 18, 2026Methodology · Editorial policy · Report an error

Evidence review status: unreviewed

Legacy index-continuity record: the score and narrative are provisional and must not be represented as validated or human-approved.

Review flags: AWAITING_SEMANTIC_VALIDATION

Provisional Summary

Alpha-GPC (L-alpha-glycerylphosphorylcholine) is a choline-containing phospholipid that crosses the blood-brain barrier to increase acetylcholine synthesis. It enhances cognitive function, memory formation, and provides neuroprotective effects through cholinergic neurotransmission.

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Screened PMID Records

Reported Benefits

Pending

Synergy Review

At a Glance

CategoryNootropic & Cognitive

GroupOther

Public Score StatusProvisional Strong

Primary KeywordAlpha-GPC benefits

Alpha-GPC (Alpha-Glycerylphosphorylcholine) — botanical close-up

Reported Benefits (Provisional)

Enhances cognitive function by increasing acetylcholine levels, crucial for synaptic plasticity and memory formation. This leads to improved learning and retention. - Supports memory and recall by boosting choline availability, a precursor to neurotransmitters. This can result in a 13% improvement in memory performance. - Improves focus and attention by modulating neurotransmitter pathways, which enhances task completion and productivity. - Promotes brain health by reducing oxidative stress, protecting neurons from damage. This can lower the risk of neurodegenerative diseases. - Enhances mood and reduces mental fatigue by balancing neurotransmitter levels, leading to increased mental clarity. - Increases physical performance by supporting growth hormone secretion, aiding in muscle recovery and endurance. - Supports overall brain health by improving cerebral blood flow, ensuring efficient delivery of nutrients and oxygen.

Origin & History

Alpha-GPC (Alpha-Glycerylphosphorylcholine) — origin

Natural habitat

Alpha-GPC is a natural choline compound found in the brain and in small amounts in soy and other foods. It is often extracted from soy lecithin or synthesized for use as a dietary supplement.

“Used as a cognitive enhancer in Europe for decades, Alpha-GPC has gained popularity worldwide for its nootropic benefits.”Traditional Medicine

Research Narrative (Provisional)

Alpha-GPC has been studied in several RCTs and observational studies, demonstrating benefits in cognitive function and physical performance, particularly in elderly populations.

Preparation & Dosage

Dosage guidance is withheld because the publication gate has not recorded adequate support for this profile.

Nutritional Profile

- Provides a source of choline, a vital nutrient for brain health. - Contains approximately 40% choline by weight. - Supports neurotransmitter synthesis and cell membrane integrity.

Reported Mechanism (Provisional)

Mechanism of Action

Alpha-GPC crosses the blood-brain barrier and is hydrolyzed by phospholipase D to release choline and glycerophosphate. The released choline serves as a substrate for choline acetyltransferase to synthesize acetylcholine, enhancing cholinergic neurotransmission. Additionally, the glycerophosphate component supports phosphatidylcholine synthesis for membrane integrity and synaptic plasticity.

Clinical Narrative (Provisional)

Multiple randomized controlled trials demonstrate Alpha-GPC's cognitive benefits. A study of 261 Alzheimer's patients showed significant improvements in cognitive assessments after 180 days of 400mg three times daily. Research in healthy young adults found 13% improvement in memory recall with 600mg daily. Athletic performance studies show enhanced power output and growth hormone response, though cognitive research is more robust than physical performance data.

Also Known As

L-Alpha-glycerylphosphorylcholineA-GPCCholine alfoscerateGlycerophosphocholinesn-Glycero-3-phosphocholineAlpha-glycerol phosphatidylcholineCholine glycerophosphate

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These statements have not been evaluated by the Food and Drug Administration. This content is for informational purposes only and is not intended to diagnose, treat, cure, or prevent any disease.

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