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Vinpocetine
Periwinkle-derived compound that increases cerebral blood flow and glucose utilization in the brain — used in Europe for decades.
Research compound — not a dietary supplement
Vinpocetine is a research compound, not a regulated dietary supplement. It is sold for research or off-label use. The evidence below is largely preclinical (animal and in-vitro) or early-stage, so no evidence score is assigned. This page is provided for transparency and education — it is not a recommendation to use. Consult a qualified healthcare provider, and be aware that purity, dosing, and legal status vary by jurisdiction.
What the evidence says
Vinpocetine appears to help in 5 of 5 studies with measurable effects — the evidence leans clearly favourable.
Most evidence is from high-quality meta-analyses and randomised trials published 1980–2026 with a typical study size of 30 participants.
Based on 49 studies · 4 meta-analyses · 24 RCTs · 45,813 total participants
Confidence
High confidenceWhat the studies found
By outcome
Scores Moderate because meta-analyses and PET studies support modest cognitive and cerebral-blood-flow benefits in cerebrovascular patients, but most trials are small, old, low-quality, and benefits in healthy users are unproven.
27 rigorous studies
20 randomized trials · 3 meta-analyses · 4 systematic reviews
Our evidence rating for Vinpocetine is accountable to this entire body of rigorous research indexed in PubMed — not a hand-picked subset.
PubMed · as of Jul 2026
2 trials ongoing or recruiting · 5 completed on ClinicalTrials.gov
1 of the completed trials have posted results
Registered trials show research momentum for Vinpocetine, not proof of effect — a registration is a plan, and posted results are sponsor-reported, not peer-reviewed. They are never counted toward the evidence rating above.
Browse these trials on ClinicalTrials.govClinicalTrials.gov · as of Aug 2026
Vinpocetine is a semi-synthetic derivative of vincamine, an alkaloid from the periwinkle plant (Vinca minor). It's been used in Europe for decades to treat cerebrovascular disorders and cognitive impairment.
It works primarily by increasing cerebral blood flow, enhancing glucose and oxygen utilization in the brain, and providing neuroprotection. It also has anti-inflammatory and phosphodiesterase-inhibiting properties.
Increases blood flow to the brain
Protects neurons from damage
Inhibits phosphodiesterase enzymes
How Vinpocetine works — from molecular targets to health outcomes. Click an edge to see supporting research.This visualization is in beta — pathways are being refined and expanded.
May provide cerebrovascular benefits; consult doctor
May enhance anticoagulant effects
Additive blood-thinning effects
Tip: Start with lower dose
Tip: Take with food
Tip: Usually transient
Vinpocetine has an evidence score of 5.5/10 — moderate evidence based on 45 indexed studies, including 3 meta-analyses. Periwinkle-derived compound that increases cerebral blood flow and glucose utilization in the brain — used in Europe for decades. Representative study: PMID 29502274.
The commonly studied dose of Vinpocetine is 10-30mg daily in divided doses. Research points to an estimated optimal dose around 30mg, with a minimum effective dose near 10mg. Individual response varies — start low and adjust.
The best time to take Vinpocetine is with meals. Take it with food. Vinpocetine is a semi-synthetic derivative of vincamine (from Vinca minor/periwinkle) that enhances cerebral blood flow by inhibiting PDE1 and modulating sodium and calcium channels.
Vinpocetine is generally safe at recommended doses, with a few precautions worth noting. Reported side effects are uncommon and include headache, GI upset, flushing. Use caution if any of these apply to you: Pregnancy and women who may become pregnant (FDA warning — developmental toxicity/reduced fetal weight); Bleeding disorders; Upcoming surgery (stop 2 weeks before).
Huperzine A
Likely helpsAcetylcholinesterase inhibitor from club moss, studied mainly for Alzheimer's and dementia; cognitive evidence is mixed and limited by trial quality.
Noopept
Mostly mechanism / observationalSynthetic peptide ~1,000x more potent than piracetam; studied for memory and learning, with limited controlled human data.
Alpha-GPC
Likely helpsCrosses the blood-brain barrier to fuel acetylcholine synthesis — supports focus, memory, and power output in athletes.
Citicoline
Probably helpsDual precursor to acetylcholine and phosphatidylcholine — enhances memory, focus, and brain cell membrane repair.
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Reviewed by Dr. Baher Al Hakim · Last reviewed May 2026 · evidence from 49 studies · how we score · editorial policy
This information is for educational purposes only. It is not a substitute for professional medical advice. Always consult a qualified healthcare provider before starting, stopping, or changing any supplement or medication.
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