Caffeine Anhydrous vs Caffeine + Theanine for focus
Short answer: For focus, users rate them about the same: 100% report improvement with Caffeine Anhydrous (5 reports) and 100% with Caffeine + Theanine (2 reports).
Caffeine Anhydrous has 0 meta-analyses and 9 randomized trials on PubMed; the other has not been graded.
Based on 29 reports about Caffeine Anhydrous and 15 about Caffeine + Theanine. Not medical advice.
| Caffeine Anhydrous Supplement | Caffeine + Theanine Supplement | |
|---|---|---|
| Users say it helped | 75%helped8 reports · few reports | 100%helped1 reports · few reports |
| Verdict | Mostly positive | Not enough data |
| Research | BResearch: Moderate | Not graded |
| Meta-analyses / RCTs | 0 / 9 | — |
| Mainly used for | ||
| Energy % reporting improvement | 83% (12) | — |
| Focus % reporting improvement | 100% (5) | 100% (2) |
| Common side effects | jitteriness, anxiety, fatigue, nasal irritation | None reported |
| Typical dose reported | 200 mg | 100 mg caffeine / 200 mg theanine |
Caffeine AnhydrousFull Caffeine Anhydrous profile →
What a user said
“I've found that 200mg of caffeine anhydrous is the most productive and enjoyable form, personally.”
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”
Related comparisons
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