L-THEANINE · CALM FOCUS

Calm without

the drowsy.

L-Theanine is the amino acid that raises alpha-wave activity — the brain state of relaxed alertness. A clean, single-ingredient capsule for focus under pressure and smoother evenings.

Shop L-Theanine View Formula →

PROFESSIONAL GRADE · 60 CAPSULES · L-THEANINE · SUNTHEANINE

L-Theanine bottle
ALPHA WAVES
200 mg per capsule

The green-tea molecule.

L-Theanine is the amino acid that gives green tea its smooth, non-jittery effect. At supplemental doses it shifts EEG activity toward alpha — the pattern of relaxed focus.

NEUROTRANSMITTERS
3 systems modulated

GABA, serotonin, dopamine.

L-Theanine gently modulates GABA, serotonin, and dopamine signaling at once — a balanced nudge rather than a single-target sedative. That's why it calms without flattening.

DAILY DOSE
1 capsule, 1-2x daily

Stack with caffeine or solo.

Pair with morning coffee to take the edge off caffeine, or use solo before a high-pressure task or bedtime wind-down. No sedation, no habituation.

MAY BENEFIT

Relaxed alertness,
on demand.

01
Stress response
L-Theanine blunts the cortisol and blood-pressure spikes that arrive with acute stress.
02
Focused calm
Alpha-wave activity rises within 40 minutes — the EEG signature of attentive relaxation.
03
Sleep quality
Evening dosing supports sleep onset without next-day grogginess or dependency risk.
04
Caffeine smoothing
Stacked with caffeine, theanine preserves focus and removes the jittery overshoot.
05
Mood stability
Gentle modulation of serotonin and dopamine supports a steadier emotional baseline.
06
Mental performance
Studies show improved attention and reaction time during cognitively demanding tasks.

Formula

One amino acid. Clean, patented Suntheanine.

KEY INGREDIENTS

L-Theanine

OTHER INGREDIENTS

Microcrystalline Cellulose, Hydroxypropyl Methylcellulose, Water, Ascorbyl Palmitate, Silicon Dioxide

DIRECTIONS

Adults: Take one capsule one-to-two times daily or as directed by a healthcare professional.

MAY BENEFIT:
Mood & Relaxation
Memory & Cognition
Sleep
Stress

Questions

Frequently asked.

Will L-Theanine make me sleepy?
Not typically. L-Theanine produces a state of relaxed alertness rather than sedation — most users report feeling calmer and more focused, not drowsy. That's why it's often used for daytime focus and test-taking as well as evening wind-down.
Can I stack it with coffee?
Yes, and many people do. The classic pairing is 100-200 mg of L-Theanine with a cup of coffee — it preserves caffeine's cognitive benefits while smoothing out the jitters and the crash.
How is this different from GABA supplements?
Oral GABA struggles to cross the blood-brain barrier. L-Theanine crosses easily and gently boosts GABA signaling alongside serotonin and dopamine — a broader, more consistent calming effect.
When should I take it?
Flexible — morning with coffee, midday before a meeting, or 30-60 minutes before bed. One to two capsules per day as needed, or as directed by your practitioner.
Is it safe long-term?
L-Theanine has a strong safety profile. It's non-habit-forming, doesn't produce tolerance at typical doses, and has been used in beverages for decades. Consult your practitioner if you are pregnant, lactating, or taking medications.

The Science

Learn the why.

methylation

How methylation shapes mood, focus, and energy

Mood, focus, and energy aren't separate systems — they run on the same methyl groups. Here's how the methylation cycle underwrites neurotransmitter chemistry, mitochondrial output, and the difference between a good day and a flat one.

Apr 4, 2026 →

sleep

Methylation and sleep: how the methyl cycle shapes your night

Your ability to fall asleep, stay asleep, and recover overnight is partly a methylation problem. Here's how the methyl cycle connects to circadian rhythm, melatonin production, and the chemistry of restorative sleep.

Feb 21, 2026 →

sleep

Melatonin and MTHFR: the connection you weren't told about

The last step of melatonin synthesis is a methylation reaction — and the methyl group comes from the same cycle MTHFR drives. Here's the biochemistry connecting your sleep hormone to your folate genetics.

Feb 8, 2026 →