Alpha-GPC
nootropics
Alpha-GPC (L-Alpha glycerylphosphorylcholine) is a naturally occurring choline compound that crosses the blood-brain barrier to support acetylcholine production and cognitive function. It is commonly used to enhance memory, focus, and mental clarity whilst supporting brain health and neuroplasticity.
Benefits
Dosage
Typical Dose
300–600 mg per day
Upper Limit
1200 mg per day
Timing
Split into 2–3 doses with meals; morning and afternoon optimal for cognitive benefits
Forms & Bioavailability
Capsule
Good absorption; standard form with consistent dosing
Powder
High bioavailability; faster absorption when dissolved; flexible dosing
Liquid
Excellent bioavailability; rapid onset; ideal for sublingual administration
Side Effects
Interactions
Research Summary
Alpha-GPC has demonstrated efficacy in supporting cognitive function, particularly in memory and attention tasks, with studies showing improvements in healthy individuals and those with age-related cognitive decline. Research supports its role in acetylcholine synthesis and potential neuroprotective effects through phosphatidylcholine production. Clinical evidence remains moderate, with most robust data in populations with existing cognitive impairment, whilst effects in healthy populations are more variable.
Compare Alpha-GPC with...
Where to Buy Alpha-GPC
We recommend buying from reputable retailers. Check reviews and third-party testing.
Affiliate links — we may earn a commission at no extra cost to you.