Nootropic

Suntheanine

Also known as: Taiyo L-Theanine, Pure L-Theanine

Taiyo's pharmaceutical-grade pure L-isomer theanine, the most-studied theanine form with clinical alpha brain wave and stress-reduction data.

Clinical dose
200 mg Suntheanine increased alpha brain wave activity and reduced stress markers vs placebo (Kobayashi et al., 1998)
Typical label dose
100–400 mg/day
Category
Nootropic
  • Focus
  • Stress Resilience
  • Sleep Quality
  • Mental Clarity
  • Anti-Anxiety

What it is & how it works

Crosses BBB; increases alpha brain waves (relaxed alertness); modulates glutamate, GABA, serotonin, and dopamine; reduces sympathetic nervous system activity.

Dosage

The clinically studied dose is 200 mg Suntheanine increased alpha brain wave activity and reduced stress markers vs placebo (Kobayashi et al., 1998).On labels you'll typically see 100–400 mg/day.

What the research shows

Premium focus and sleep formulas specify Suntheanine for the pharmaceutical-grade L-isomer purity, generic theanine often contains inactive D-isomer.

Studies & citations

Formulas it appears in

  • Focus Formula
  • Sleep Aid
  • Nootropic
  • Pre-Workout

Focus Formula

Categories

Suntheanine FAQ

What is Suntheanine?

Taiyo's pharmaceutical-grade pure L-isomer theanine, the most-studied theanine form with clinical alpha brain wave and stress-reduction data.

How much Suntheanine should I take per day?

The clinically studied dose is 200 mg Suntheanine increased alpha brain wave activity and reduced stress markers vs placebo (Kobayashi et al., 1998).

What does Suntheanine do?

Premium focus and sleep formulas specify Suntheanine for the pharmaceutical-grade L-isomer purity, generic theanine often contains inactive D-isomer.

What is Suntheanine found in?

Focus Formula

Related Nootropic ingredients

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Educational information only, not medical advice, doses reflect published research. Check with a healthcare professional before starting any supplement.