L-Theanine + Caffeine side effects
Across 33 first-hand reports, people mentioned a side effect 5 times (about 15 per 100 reports). The most common: emotional dulling, addiction, fatigue. User reports show what people notice — they can't tell you whether L-Theanine + Caffeine is safe for you.
Reported side effects
emotional dulling1
addiction1
fatigue1
mental slowness1
drowsiness1
In their own words
“L-theanine and caffeine makes me want to sleep .. never feel energized after taking it..”
“I accidentally took 800 mg once when I thought I grabbed my bottle of calcium and took a double dose (4 pills) but an hour later I was extremely calm, lethargic, had zero anxiety”
“emotional dulling I get from stronger focus promoters like 200mg modafinil or 2:1 L-theanine + caffeine”
“Nootropics/supplements I've tried in the past but haven't helped: L-Theanine + Caffeine”
“Caffeine+theanine also doesn't help - it prevents me from falling asleep, but doesn't do anything to relieve the sleepiness and brain fog.”
“I like you tried, modafinil, l-theanine caffeine, tyrosine, tea, and much much more with little or no success.”