Nootropic Focus Stack
The classic caffeine + L-theanine base plus two cognition-focused additions.
Decent stack — covers your goals but has room to improve.
What's in this stack
- L-Theanine6/10 evidence
Tea-derived amino acid that boosts alpha brain waves for calm, focused alertness — synergizes with caffeine to reduce jitteriness.
Typical dose: 100-200mg
- Caffeine9.5/10 evidence
Blocks adenosine receptors to boost alertness, reaction time, and endurance — an umbrella review of 21 meta-analyses found it ergogenic for endurance, strength and power.
Typical dose: 100-200mg
- Lion's Mane4.5/10 evidence
Stimulates nerve growth factor (NGF) through hericenones and erinacines; studied for cognition and nerve health, with limited human evidence.
Typical dose: 500-3000mg daily
- Alpha-GPC7/10 evidence
A choline source that crosses the blood-brain barrier. Trials show cognitive gains in people with dementia or after stroke. In healthy adults the data are a few small, short studies.
Typical dose: 300-600mg daily (a typical label dose, not the dose used in the cited trial, which gave a single 1,000 mg intramuscular dose)
What this stack covers
- Sharpen focus86% · via Caffeine
- Improve memory & learning35% · via Alpha-GPC
- Improve memory & learninggap — not covered
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