Everything DoseRank tracks on the alpha gpc shelf — Huperzine A. The category itself is never ranked: 25 products get scored the moment you say what you want them to do.
How to read the scores
This legend covers the scores on this page — for data sources, scoring weights, and limits, read the full methodology →
Answer a few questions about your goals, habits, stack, and budget. Then, DoseRank will find the products that best match your needs based on your answers. It's free and only takes 60 seconds! No account is required.
A saved, shareable breakdown: your matched products, dose math, interaction flags to discuss with a clinician, and a price-tracked stack you can revisit.
Questions
Each product gets a composite score blending clinical strength, evidence, dose fit, trust and value — computed for the goal you picked, across this category's products. The #1 on the DoseRank tab has the highest composite; the other tabs re-rank the same products by Value, Trust, or Popularity. Placement is never paid.
Start with a goal, not a brand
Browsing alpha gpc supplements without a goal makes no sense — different products do different jobs, and “best” flips depending on which job you're hiring for. These are the 19 health outcomes that matter for this category. Pick yours, and the full evidence-ranked shelf loads for that goal alone.
Activities of daily livingCapacity to complete routine self-care activities independently.3 rankedStrong
Choline statusAdequacy of choline availability.25 rankedStrong
Power outputAbility to generate force rapidly.25 rankedLimited
MemoryAbility to encode, store, and retrieve information.25 rankedStrong
Attention and concentrationAbility to sustain and direct focus.9 rankedModerate-strong
Cognitive functionOverall thinking ability including memory, attention, and processing.25 rankedStrong
Calmness or relaxationReduced tension and greater sense of calm.2 rankedStrong
Phosphate statusBiochemical phosphate balance.4 rankedStrong
Fat oxidationUse of fat as an energy source.4 rankedModerate-strong
Vitamin B6 statusBiochemical sufficiency of pyridoxine-related compounds.3 rankedStrong
Anxiety symptomsWorry, tension, fear, or related anxiety manifestations.4 rankedStrong
HomocysteineAmino acid marker linked with vascular and methylation status.3 rankedStrong
Antioxidant capacityMeasured ability to counter oxidative stress.6 rankedModerate-strong
Pain intensitySeverity of pain regardless of body site.1 rankedStrong
AppetiteDesire to eat; may be clinically favorable or unfavorable depending on context.1 rankedModerate-strongNothing is ranked yet — the shelf stays locked until you pick a goal.
No goal, no ranking.
A “best alpha gpc supplement” list without a goal would be marketing, not evidence. Pick what you want to improve and DoseRank scores all 25 products against that goal's trials.