Supplement
Caffeine + L-Theanine Stack
Half-life
Caffeine: 5–6 hours
What is Caffeine + L-Theanine Stack?
2:1 L-theanine to caffeine ratio — the gold standard focus nootropic stack.
How Caffeine + L-Theanine Stack works
Caffeine blocks adenosine receptors for energy/focus; L-theanine increases alpha brainwave activity and GABA to blunt caffeine's anxiogenic effects — creating calm, focused alertness.
Benefits & uses
Common uses: Smooth cognitive enhancement, focus, attention, anxiety-free energy, creative work.
Caffeine + L-Theanine Stack dosage
- Typical dose
- 100–200 mg caffeine + 200–400 mg L-theanine (2:1 ratio). Available in pre-made capsule form.
Caffeine + L-Theanine Stack half-life
Caffeine: 5–6 hours; L-theanine: ~1 hour
Caffeine + L-Theanine Stack side effects
Fewer jitters and anxiety than caffeine alone. May cause mild sedation at very high theanine doses.
- L-theanine reduces caffeine's side effects significantly
- Very well tolerated combination
- Mild sedation at very high theanine doses
Commonly stacked with
Track Caffeine + L-Theanine Stack in Protokol.
Log doses, model half-lives, check interactions, and line it all up against your bloodwork. Free on iPhone and Android.
