Theanine + Caffeine
People mainly take Theanine + Caffeine for focus. Based on 3 first-hand reports. Ranked #1289 of 3,539 overall.
22
User score
Mostly positive67% positive0% mixed0% negative33% unclear
Of reports that state an outcome, 100% are positive.
Clinical research
Research pending
What Theanine + Caffeine does, according to users
Of the people who reported each effect, the share who said it got better.
betterno changeworse
What the research says
Systematic reviews and meta-analyses from PubMed, with their published conclusions.
Research data for Theanine + Caffeine is being compiled.
Dosage people report
As stated by users — not a recommendation. Follow the label or your doctor.
No doses stated in the reports so far.
Reported side effects
How often each side effect came up across all reports.
No side effects reported so far.
What users say
First-hand experiences, quoted verbatim. We show one positive and one negative where both exist.
“the only true, noticeable, and obvious nootropic I've used, is theanine, especially in combination with caffeine”
“theanine+caffeine or modafinil... These are really all I need for concentration.”
Other options for focus
Modafinil
Medication · 1,116 reports
84% report better focus
MixedAResearch: Strong
L-Theanine
Supplement · 2,343 reports
85% report better focus
Mostly positiveAResearch: Strong
Creatine
Supplement · 1,564 reports
92% report better focus
Mostly positiveAResearch: Strong
Phenylpiracetam
Supplement · 649 reports
90% report better focus
Mostly positiveDResearch: None
Amphetamine
Medication · 740 reports
82% report better focus
MixedAResearch: Strong
Nicotine
Substance · 467 reports
90% report better focus
MixedAResearch: Strong
User data from public discussions; research from PubMed. Information only, not medical advice — talk to a doctor before starting, stopping or combining anything. Data updated October 3, 2026. How we rate