🧪 Compound Profile

L-Theanine is a non-protein amino acid found primarily in green tea. It’s prized for its ability to promote calm, focused mental states without causing drowsiness.


🧠 Effects

  • Alpha Wave Induction: Enhances alpha brain wave activity, associated with relaxed alertness
  • Anxiolytic Properties: Reduces anxiety and stress without sedation
  • Focus Booster: Often paired with caffeine to improve focus and attention span
  • Mood Regulation: May support balanced dopamine and serotonin levels

🔬 Mechanism of Action

L-Theanine modulates glutamate, GABA, and dopamine activity — promoting neurotransmitter balance and smoother signal transmission in the brain. It enhances alpha brain wave activity, commonly observed in meditative states.


💡 Synergies

  • Caffeine + L-Theanine: The iconic nootropic duo. Combines energy with calm to reduce jittery side effects.
  • Ashwagandha: Dual stress-reduction for high-stress days.
  • Rhodiola: Helps maintain composure during high cognitive load.

⚖️ Dosage

  • Typical Range: 100–200 mg
  • For Caffeine Pairing: 2:1 L-Theanine to caffeine ratio is common
  • Timing: Take in the morning or early afternoon for daytime focus; evening use can support calm without sedation

⚠️ Side Effects & Warnings

L-Theanine is well-tolerated and non-habit forming. Mild drowsiness may occur in very high doses, but it’s rare.


🧬 Source

  • Naturally occurring in green and black tea
  • Available in capsule or powder form as a supplement

🧠 Category

Neurocalm Agent