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Alpha GPC 300 mg

NOW
4.6
★ ★ ★ ★ ★
(6118 ratings)
Alpha-GPC 600 mg
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Score75
A substantial, single-ingredient Alpha-GPC serving gives this capsule a clear cognitive purpose. Missing active-yield and moisture-protection details are the main trade-offs.
How scoring works
Quantity:60 Capsule(s) • (30 servings)
Goals:
Productivity Boost
Mental Focus
Cognitive Support
Brain Health
Anti-Aging

Score 75

A substantial, single-ingredient Alpha-GPC serving gives this capsule a clear cognitive purpose. Missing active-yield and moisture-protection details are the main trade-offs.
How scoring works
$23.78($0.79 per serving)
Vitacost
$ 27.97
Daily Vita
$ 25.50
Amazon
$ 23.78
Pure Formulas
$ 26.60
iHerb
$ 26.93
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Analysis

The single-active design is easy to understand and directly supports acetylcholine production for memory and attention. A 600 mg material amount is listed per serving, although the label does not confirm how much active Alpha-GPC that material provides.

Leaving out extra vitamins and botanicals keeps the purpose clear and avoids low-dose padding. Generic sourcing and no stated moisture-protective packaging reduce confidence in purity and stability for an ingredient that readily absorbs moisture.

The formula is best suited to adults seeking focused cholinergic support rather than broad support for stress, alertness, or brain-cell membranes. Its value is reasonable, but the uncertain active yield makes direct dose comparisons difficult.

Who is it for
  • Adults seeking focused choline support
  • People who prefer a single-active capsule
  • Users targeting memory or attention pathways without stimulants
Best for
  • Simple Alpha-GPC supplementation
  • Stimulant-free cognitive routines
  • Users who value a focused formula

Pros

  • Substantial labeled Alpha-GPC material amount
  • Single-active formula avoids ingredient clutter
  • Clear serving-level quantity disclosure

Cons

  • Active Alpha-GPC yield is not stated
  • No branded source or purity details are supplied
  • Standard capsules offer no stated moisture protection
  • Does not cover alertness, stress, or membrane-support pathways

Warnings

  • Alpha-GPC may cause headache in sensitive users
  • Alpha-GPC may cause digestive discomfort in sensitive users

Nutrient quality

78 High impact

Alpha-GPC is a brain-available choline source, but generic sourcing and standard capsule storage offer limited purity and moisture assurance. The large material amount likely provides a meaningful active Alpha-GPC dose despite uncertain yield.

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Ingredient transparency

80 Highest impact

Every listed active ingredient has a specific amount. Usage and inactive-ingredient details remain incomplete.

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Customer satisfaction

72 High impact

The average rating is consistently strong. The very large feedback pool makes the average highly dependable.

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Value for money

69 High impact

The substantial dose partly supports the price despite quality uncertainty. Serving cost is moderate for an unverified active yield.

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Goals

Productivity Boost
Impact
Highest effect
A- Goal FitA- Strength of SupportC+ CoverageA+ Formula Quality
Alpha-GPC · 600 mg

Alpha-GPC directly supplies choline for acetylcholine synthesis and has a strong mechanistic fit for attention and mental performance. Human evidence is useful but varies across healthy and clinical populations.

The serving amount is substantial and falls within commonly studied use. The label does not state active yield, branded sourcing, or purity protection, and sensitive users may experience headache or digestive discomfort.

Study evidence
Alpha-GPC Supportive 2 studies
Mental Focus
Impact
Highest effect
B+ Goal FitA+ Strength of SupportC- CoverageA+ Formula Quality
Alpha-GPC · 600 mg

Alpha-GPC is a brain-available choline source that can support acetylcholine production for attention and learning. The 600 mg serving is substantial, though benefits are more dependable in specific cognitive or exercise settings than for every healthy user.

The single active is clearly named and fully disclosed. Its narrow design offers strong cholinergic depth without alertness or stress-resilience support.

Study evidence
Alpha-GPC Supportive 1 study
Cognitive Support
Impact
High effect
A- Goal FitB+ Strength of SupportD+ CoverageA Formula Quality
Alpha-GPC · 600 mg

Alpha-GPC directly supplies choline for acetylcholine, a neurotransmitter central to memory and attention. Human evidence supports cognitive effects in selected populations, although benefits in healthy adults are less certain.

The listed 600 mg amount reaches a commonly studied Alpha-GPC range. The amount is clear, but active yield, purity, and moisture-protection details are not confirmed. Alpha-GPC can cause headache or digestive discomfort in sensitive users.

Study evidence
Alpha-GPC Supportive 15 studies
Brain Health
Impact
High effect
B Goal FitB Strength of SupportC- CoverageA Formula Quality
Alpha-GPC · 600 mg

Alpha-GPC directly supplies choline for acetylcholine and therefore aligns well with memory and attention pathways. The focused design does not address structural fats, stress adaptation, or neuroprotection.

The listed material is expected to provide a meaningful active Alpha-GPC amount, but the label does not confirm active yield. Generic sourcing and missing moisture-protection details reduce confidence in purity and stability.

Study evidence
Alpha-GPC Supportive 12 studies
Anti-Aging
Impact
High effect
B- Goal FitB- Strength of SupportD+ CoverageA Formula Quality
Alpha-GPC · 600 mg

Alpha-GPC supports acetylcholine pathways involved in attention and memory, making it relevant to cognitive aging. The listed material amount is substantial.

The label does not confirm active yield, so the actual Alpha-GPC delivered may be lower than the material weight suggests. Generic sourcing and no stated moisture protection also limit confidence in stability.

Study evidence
Alpha-GPC Not classified

No linked studies yet.

Ingredients

IngredientAmount per serving
Alpha GPC
600 mg
Gluten Free Adults 18–50 Vegan Dairy Free Vegetarian
Report overview
Alpha-GPC · 600 mg OverallScore60
D- Active Ingredient Quality & BioavailabilityB+ Dose, Safety & Label TransparencyD+ Value

The estimated active Alpha-GPC dose reaches a well-supported range, but the label does not confirm active yield. A generic source and standard capsule offer limited assurance about purity and moisture protection. The estimated active amount may cause headache or digestive upset in sensitive users.

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Sources

Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.

  1. Effect of Choline Alfoscerate on the Progression From Mild Cognitive Impairment to Dementia: Distributed Network Analysis of a Multicenter Korean Database Using a Common Data Model.
    Pyun JM; Lee I; Lee K; Kim MH; Park C; Yang HJ · Dementia and neurocognitive disorders · 2024
    Cohort study3,062 participantsCognitive Support forAlpha-GPC
  2. Activity of Choline Alphoscerate on Adult-Onset Cognitive Dysfunctions: A Systematic Review and Meta-Analysis.
    Sagaro GG; Traini E; Amenta F · Journal of Alzheimer's disease : JAD · 2023
    Meta-analysis8 studies pooledBrain Health Cognitive Support forAlpha-GPC
  3. The Care Pathway for Patients with Mild Cognitive Impairment in Korea: A Survey of Dementia Specialists.
    Choi SH; Shim Y; Kim S; Yang DW; Park KH; Kim J; Youn YC · Dementia and geriatric cognitive disorders extra · 2025
    Cross-sectional studyCognitive Support forAlpha-GPC
  4. Comparative study of choline alfoscerate as a combination therapy with donepezil: A mixed double-blind randomized controlled and open-label observation trial.
    Lee W; Kim M · Medicine · 2024
    Randomized trial119 participantsCognitive Support Brain Health forAlpha-GPC
  5. Effects of choline alfoscerate on cognitive function and quality of life in type 2 diabetes: A double-blind, randomized, placebo-controlled trial.
    Sohn M; Park YH; Lim S · Diabetes, obesity & metabolism · 2025
    Randomized trial36 participantsBrain Health Cognitive Support forAlpha-GPC
  6. Acute Alpha-Glycerylphosphorylcholine Supplementation Enhances Cognitive Performance in Healthy Men.
    Kerksick CM · Nutrients · 2024
    Randomized trial20 participantsBrain Health Mental Focus Productivity Boost forAlpha-GPC
  7. Effect of Choline Alfoscerate on Cognitive Dysfunction After Mild Traumatic Brain Injury: A Single-Center Prospective Case-Control Study.
    Park MS; Yang JS; Kang SH; Choi HJ; Jeon JP; Cho YJ · Korean journal of neurotrauma · 2025
    Non-randomized trial30 participantsBrain Health forAlpha-GPC
  8. [Gliatilin in the Treatment of Cognitive Impairments Not Reaching the Level of Dementia: Meta-Analysis and Systematic Review].
    Voznyuk IA; Nepomnyashchiy IS; Kutkova AK; Tokareva DV; Prokhorova MV; Ovdiienko OA; Shusharina NN · Zhurnal nevrologii i psikhiatrii imeni S.S. Korsakova · 2025
    Meta-analysis10 studies pooledCognitive Support forAlpha-GPC
  9. [Modern approaches to the diagnostics and treatment of the consequences of traumatic brain injury in children and adolescents].
    Nemkova SA · Zhurnal nevrologii i psikhiatrii imeni S.S. Korsakova · 2022
    Randomized trialBrain Health Cognitive Support forAlpha-GPC
  10. Vertical Association Between Dietary Total Choline and L-alpha-glycerylphosphorylcholine and the Cognitive Function in Chinese Adults Aged over 55, Result from China Health and Nutrition Survey 1997-2018.
    Guan F; Jia X; Huang F; Zhang J; Wei Y; Li L; Bai J; Wang H · Nutrients · 2024
    Cohort study7,659 participantsCognitive Support forAlpha-GPC
  11. A multicentre trial to evaluate the efficacy and tolerability of alpha-glycerylphosphorylcholine versus cytosine diphosphocholine in patients with vascular dementia.
    Di Perri R; Coppola G; Ambrosio LA; Grasso A; Puca FM; Rizzo M · The Journal of international medical research · 1991
    Randomized trial120 participantsBrain Health Cognitive Support forAlpha-GPC
  12. Clinical Effectiveness of Treatments for Mild Cognitive Impairment in Adults: A Systematic Review.
    Cepeda-Pineda D; Sequeda G; Carrillo-Sierra SM; Silvera-Cruz K; Redondo-Chamorro J; Rozo-Sánchez A; Bermúdez V; Contreras-Velásquez JC; Gómez-Charris Y; Rivera-Porras D · European journal of investigation in health, psychology and education · 2025
    Systematic review40 studies pooledBrain Health forAlpha-GPC
  13. [Efficacy of choline alfoscerate treatment for subjective cognitive impairment in first-degree relatives of patients with Alzheimer's disease: Results of a comparative 5-year study].
    Selezneva ND; Roshchina IF; Gavrilova SI · Zhurnal nevrologii i psikhiatrii imeni S.S. Korsakova · 2026
    Non-randomized trial122 participantsCognitive Support forAlpha-GPC
  14. Cognitive improvement in mild to moderate Alzheimer's dementia after treatment with the acetylcholine precursor choline alfoscerate: a multicenter, double-blind, randomized, placebo-controlled trial.
    De Jesus Moreno Moreno M · Clinical therapeutics · 2003
    Randomized trial261 participantsBrain Health forAlpha-GPC
  15. alpha-Glycerophosphocholine in the mental recovery of cerebral ischemic attacks. An Italian multicenter clinical trial.
    Barbagallo Sangiorgi G; Barbagallo M; Giordano M; Meli M; Panzarasa R · Annals of the New York Academy of Sciences · 1994
    Single-arm trial2,044 participantsBrain Health forAlpha-GPC
  16. Treatment of dementia with neurotransmission modulation.
    Doggrell SA; Evans S · Expert opinion on investigational drugs · 2004
    Narrative reviewProductivity Boost forAlpha-GPC