I have an anxiety disorder and have been investigating OTC anxiolytics for potency. Since some benzodiazepines have stronger effects or come up faster when taken sublingually or intranasally, I investigate different routes of administration with new substances I try.
L-Theanine
Encyclopedic
Encyclopedic
Typical encyclopedia coverage. Cross-reference for important decisions.
- 3 corroborating sources
- 1 ROA with full dose ladder
- duration data present
- PubChem toxicity data
Encyclopedic
Typical encyclopedia coverage. Cross-reference for important decisions.
- 3 corroborating sources
- 1 ROA with full dose ladder
- duration data present
- PubChem toxicity data
Aliases: Theanine, N5-ethyl-l-glutamine, Gamma-glutamylethylamide, L-gamma-glutamylethylamide
Summary
L-Theanine is a naturally occurring amino acid found primarily in tea leaves. It promotes relaxation without sedation at common doses but may become sedating at strong doses (300+ mg). Often combined with caffeine to reduce anxiety and improve focus while maintaining alertness.
Dose Information
| ROA | Light | Common | Strong | Heavy |
|---|---|---|---|---|
| Oral | 75-175mg | 175-300mg | 300-500mg | 500mg+ |
Light
Common
Strong
Heavy
Onset, Duration & After-effects
| ROA | Onset | Peak | Offset | Total |
|---|---|---|---|---|
| Oral | 30-90 min | 1-3 hrs | 2-3 hrs | 3-6 hrs |
Effect Profile
12 reportsScores (1–10) curated from multiple sources:
- Effect keyword matching from PsychonautWiki catalog
- Weighted by importance: core (×3), major (×2), minor (×1)
Stimulant
5.9
Strong
6/10
Strong focus with mild euphoria, low stimulation and anxiety/jitters
Stimulation / Energy
×3
3
stimulation
Euphoria / Mood Lift
×2
5
physical euphoria
motivation enhancement
Focus / Productivity
×2
10
focus enhancement
analysis enhancement
cognitive enhancement
memory enhancement
motivation enhancement
Anxiety / Jitters
×1
2
increased heart rate
Based on reports from:
Tolerance
Build-up
develops rapidly after a single use (serotonergic psychedelic)
Reset
7–14 days for baseline
Tolerance Decay
Full tolerance
1h
Half tolerance
10d
Baseline
~14d
Acute tolerance: develops within a single session — the reset numbers above apply after sustained heavy use, not after one binge. Within-session tachyphylaxis usually resets largely overnight.
Effects
Aggregated from 12 Erowid experience reports
Positive Effects 5
Stimulation
66.7%
70%
Focus Enhancement
50.0%
70%
Euphoria
41.7%
70%
Music Enhancement
25.0%
70%
Tactile Enhancement
25.0%
70%
Adverse Effects 1
Anxiety
83.3%
70%
Community Trip Reports
Anecdotal first-person accounts from Reddit, Erowid, and Bluelight. Click a source to expand. Reports are harm-reduction context, not medical guidance.
Erowid 5 reports 4 neutral 1 cautionary visit
Various Experiences With Spirit of Camellia I bought some pure theanine from a reputable online retailer a few months back. One of the tidbits on dosing I read somewhere is 'take upon the first signs of stress' this is a pretty good guideline (if taking for stress anxiety).
Background: Ordered some l-theanine a couple of days ago. Just recieved it and decided to take it at the beginning of my work shift at 09:18 for experimental purposes. T+0:00 - Mixed ~600mgs in a glass with a little water and drank it. Very weird taste. Sweet undertones but pretty gross.
I ordered a bottle of L-theanine online. I am currently on xanax 1 milligram at night to sleep. I am a very anxious, high-strung personality, so I figured I would give the theanine a try. After a weigh lifting workout, I took 200 milligrams. Usually it takes me a while to relax from the pre-workout caffeine.
I have had severe anxiety for 15 years. Utterly crippling, and unaffected by any prescribed med. I was clean of all mood altering meds when I took the L-theanine. I took 200mg L-theanine in evening before bed and anxiety dropped away in a half hour. I wasn't euphoric at all, just free of anxiety.
L-Theanine's nerd page
Pharmacology, chemical data, effect profiles, and more
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Helpful Links
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