Does L-Theanine help with libido?
Possibly — but there are few reports. 25% of 12 people who reported on L-Theanine for libido say it improved. 8% noticed no change and 67% say it got worse.
Libido: what users report
25%better12 reports · few reports
3 better1 no change8 worse
What people say about L-Theanine and libido
“I also did a quick Google search and found theanine might increase libido. Interestingly, in another post on Reddit I just read that someone was taking theanine and had reduced libido.”
What the research says
AResearch: Strong18 meta-analyses · 78 trials on PubMed
None of the top reviews we found look specifically at libido. See all research on L-Theanine.
Side effects people mention
drowsiness 87vivid dreams 24fatigue 19headache 9anhedonia 8
What else is L-Theanine used for?
Based on few reports — treat as anecdotal. Information only — not medical advice. How we count