Caffeine and L-Theanine
The classic nootropic stack: L-theanine smooths caffeine's jitters while preserving the focus boost.
Caffeine
The world's most popular cognitive stimulant.
L-Theanine
Calm, focused alertness from green tea.
Great to combine
These two are frequently stacked together; they complement each other and are commonly taken at the same time.
How to take them
Caffeine
- Dose
- 50–200 mg per dose
- Timing
- Earlier in the day; avoid within 8–10 hours of bedtime
L-Theanine
- Dose
- 100–200 mg per dose
- Timing
- With caffeine for focus, or alone in the evening for calm
Frequently asked
Can you take Caffeine and L-Theanine together?
Yes, they are commonly taken together. The classic nootropic stack: L-theanine smooths caffeine's jitters while preserving the focus boost.
What's the best time to take Caffeine and L-Theanine?
Around the same time works well. Caffeine: Earlier in the day; avoid within 8–10 hours of bedtime. L-Theanine: With caffeine for focus, or alone in the evening for calm.
How do Caffeine and L-Theanine interact?
Synergy: Work better together than alone. The classic nootropic stack: L-theanine smooths caffeine's jitters while preserving the focus boost.
Related pairings
Caffeine + Creatine
Some early data hinted caffeine might blunt creatine's effects; evidence is mixed and any effect is likely minor.
Ashwagandha + L-Theanine
Both promote calm; frequently stacked for stress management.
L-Theanine + Magnesium
Both calm the nervous system, a popular combination for relaxation and sleep.