OYAH INGREDIENT LIBRARY

Alpha-GPC

Alpha-GPC supplies choline, but much of its clinical literature involves older adults with neurological disease rather than healthy students or workers.

Evidence reviewUpdated 11 October 2026
ACholine source / cognition research
Evidence signalClinical-population evidence; healthy-adult gap
Research focusCognitive impairment and cholinergic function
Key qualifierPopulation and intended use

What it is

Alpha-glycerylphosphorylcholine is a choline-containing compound. Choline contributes to cell membranes and acetylcholine synthesis, but a biological role does not prove better cognition in a person who already has adequate intake.

What human research suggests

Reviews report possible effects in some neurological and cognitive-impairment populations. The evidence does not establish reliable memory or focus benefits in healthy young adults. Study designs, co-treatments and diagnostic groups vary.

HOW THIS RELATES TO OYAH

Alpha-GPC in an OYAH formula.

The related product page shows the current ingredient list and directions. Compare those details with each paper before deciding how closely the evidence applies. OYAH does not claim that the finished formula was tested in the linked studies.

Cognitive PerformanceView Cognitive Performance
Ingredient studyTests a defined ingredient, preparation and protocol.Finished-product evidenceWould require a clinical trial of the complete formula.Certificate of AnalysisReports the tests shown for a sample or lot; it does not establish benefit.
SAFETY & CONTEXT

What to consider before use.

Reported effects can include headache, dizziness, gastrointestinal symptoms and low blood pressure. Long-term supplement evidence in healthy adults is limited. People taking cholinergic or anticholinergic medicines should seek clinical advice.

This guide is educational and is not medical advice. Speak with a qualified healthcare professional about pregnancy, breastfeeding, medical conditions, medicines, surgery or persistent symptoms.

READ THE SOURCES

Follow the evidence.

Each link opens the publication, indexed record or government guidance. Study findings remain limited to the preparation and protocol researchers examined.

  1. Choline alphoscerate and cognitive dysfunction2023 systematic review and meta-analysis · PMID 36683513 ↗
  2. Choline supplements: an update2023 comprehensive review · PMID 36950691 ↗
  3. Alpha-GPC clinical evidence2026 review of neurodegenerative research · PMID 42199923 ↗
Current product directory

Know the product. Read the evidence.

Compare the current OYAH range, then open the product-specific evidence and ingredient guides. Ingredient studies do not establish the benefits of a finished OYAH formula.