Alpha-GPC
Nootropic
Also known as: L-alpha glycerylphosphorylcholine, Choline alfoscerate, Alpha-glycerophosphocholine
B
Grade B💊 300-600 mg daily🎯 10 primary uses🔗 3 synergies⚠️ Review warnings
Levels upBrain & Focus+50 pts
Overview
Highly bioavailable choline source crossing the blood-brain barrier. Supports acetylcholine and growth hormone.
Primary Uses
Choline supplyMemoryFocusAthletic powerPower outputMind-muscle connectionGrowth hormoneBrain healthCholine sourceAthletic performance
Frequently Asked About Alpha-GPC
How much Alpha-GPC should I take?
The typical effective range is 300-600 mg daily. Individual needs vary based on age, body weight, diet, and goals — start at the lower end and adjust based on response. Always consult a healthcare provider before starting a new supplement.
When is the best time to take Alpha-GPC?
Morning or pre-workout. Consistency matters more than perfect timing — pick a daily anchor (e.g. with breakfast or before bed) and stick with it.
Should I take Alpha-GPC with food?
Optional.
Does Alpha-GPC interact with medications?
Yes — known interactions include Scopolamine and Anticholinergics. If you take any prescription medication, talk to your doctor or pharmacist before starting Alpha-GPC.
What does Alpha-GPC pair well with?
Alpha-GPC stacks well with Racetams, Huperzine A, and Lion's mane — these combinations either improve absorption or work synergistically toward common goals.
Who should not take Alpha-GPC?
Alpha-GPC should be avoided or used with caution by people with None. Pregnant or breastfeeding women should consult a healthcare provider before use.
What are the side effects of Alpha-GPC?
Most people tolerate Alpha-GPC well. The most commonly reported side effects are Headache, GI upset, and Fishy body odor. Side effects are usually dose-dependent — lowering the dose often resolves them.
Dosage
Typical range
300-600 mg daily
Timing
Morning or pre-workout
With food
Optional
Duration
Acute effects
Special Populations
Athletes, cognitive support
Research & Studies
Search the literature now
We haven’t curated landmark studies for Alpha-GPCyet — one-click into the primary literature here. PubMed (RCTs) is usually the highest-signal starting point.
Mechanism of Action
- • Crosses BBB efficiently
- • Acetylcholine precursor
- • May boost growth hormone
Evidence Quality
Evidence Grade B
Superior choline delivery to brain
Safety & Contraindications
Serious Warnings
- • None
Contraindications
- • None
Common Side Effects
- • Headache
- • GI upset
- • Fishy body odor
Pregnancy & Breastfeeding
Consult healthcare provider
Liver & Kidney Notes
Safe
Interactions
💊 Medications
- • Scopolamine
- • Anticholinergics
🧪 Supplements
- • Essential with racetams
🍽️ Food & Alcohol
- • No interactions
Stacking & Synergies
Pairs Well With
Avoid Combining With
Excessive choline sources
Best Goal Synergies
FocusMemoryPower output
Buying Guide
What to Look For
- • 50% Alpha-GPC common
Standardization Markers
Alpha-GPC percentage
Adulteration risk
Low
Practical Notes
- • Often paired with racetams
- • Hygroscopic - keep dry
- • Pre-workout for focus
- • Hygroscopic - store properly
- • Hygroscopic - keep container sealed
- • May support GH
Tags
nootropiccholineacetylcholinefocuspowerbraingrowth hormone
Top Products with Alpha-GPC
Highest-scored catalog products containing Alpha-GPC, ranked by our scoring engine.
Creatine + Alpha GPCThorne97
Alpha GPC CapsulesNootropics Depot96
Alpha GPC CapsulesNutricost96
Alpha GPC PowderNootropics Depot96
Related Guides
In-depth guides covering Alpha-GPC — protocols, comparisons, and use cases.
More in Nootropic
Other ingredients in the Nootropic category.
Acetyl-L-Carnitine (ALCAR)
Acetyl L-Carnitine is a form of carnitine that crosses the blood-brain barrier and supports mitochondrial energy production and acetylcholine synthesis. It has shown modest benefits for cognitive function and energy metabolism in some studies, with stronger evidence in elderly populations and carnitine-deficient states.
Adrafinil
Prodrug converting to modafinil in the liver. Unscheduled in many countries but requires liver monitoring.
American Ginseng
American ginseng is a traditional herbal adaptogen used to support energy, immune function, and stress resilience. Moderate evidence supports benefits for fatigue and immune support, though effects are generally modest and more research is needed.
Aniracetam
Fat-soluble racetam with anxiolytic properties. Enhances creativity, verbal fluency, and reduces anxiety.
Ashwagandha
Ashwagandha is a traditional Ayurvedic herb standardized for withanolides, with evidence supporting modest benefits for stress reduction, anxiety, and cortisol modulation. Multiple clinical trials demonstrate efficacy for stress-related symptoms, though effect sizes are generally moderate.
Bacopa monnieri
Bacopa monnieri is a traditional Ayurvedic herb standardized for bacosides, compounds with demonstrated effects on memory consolidation and cognitive processing speed in multiple clinical trials. Evidence suggests it may support learning and mental clarity, particularly with consistent use over weeks to months.
Last reviewed: September 2026 by the Formulate Research Team. Sources cited above; methodology and scoring criteria published here.
Cite this page
Formulate Research Team. (2026, September). Alpha-GPC — Evidence-Based Supplement Guide. Formulate Supplement Encyclopedia. https://app.formulate-health.app/learning/supplements/alpha-gpc
Educational content based on published research and our scoring methodology. Not medical advice — consult a qualified healthcare provider before starting, stopping, or changing supplements, especially if you take medications, are pregnant, or have a medical condition.