Caffeine + L-Theanine vs Caffeine + Theanine for focus
Short answer: For focus, more users report improvement with Caffeine + Theanine — 100% of 2 reports, versus 91% of 66 for Caffeine + L-Theanine.
Based on 121 reports about Caffeine + L-Theanine and 15 about Caffeine + Theanine. Not medical advice.
| Caffeine + L-Theanine Supplement | Caffeine + Theanine Supplement | |
|---|---|---|
| Users say it helped | 78%helped77 reports · medium confidence | 100%helped1 reports · few reports |
| Verdict | Mostly positive | Not enough data |
| Research | Not graded | Not graded |
| Meta-analyses / RCTs | — | — |
| Mainly used for | ||
| Focus % reporting improvement | 91% (66) | 100% (2) |
| Energy % reporting improvement | 82% (28) | — |
| Anxiety % reporting improvement | 100% (17) | — |
| Mood % reporting improvement | 100% (6) | — |
| Common side effects | drowsiness, frequent urination, insomnia, nausea | None reported |
| Typical dose reported | 400 mg caffeine / 800 mg l-theanine | 100 mg caffeine / 200 mg theanine |
Caffeine + L-TheanineFull Caffeine + L-Theanine profile →
What a user said
“I was hit with a surge of focus and mental clarity that I have not experienced in a very very long time.”
Caffeine + TheanineFull Caffeine + Theanine profile →
What a user said
“Today I stacked 150 mg of phenylpiracetam with a 100 mg/200 mg caffeine/theanine capsule”
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Percentages come from first-hand user reports and are not clinical outcomes. Talk to a doctor before starting, stopping or combining anything. How we rate