Doctor's Best
Doctor's Best L-Theanine with Suntheanine, 150 mg, 90 Veggie Caps
88/100
SUPPIE SCORE
69/100
EFFICACY
High
SAFETY
100/100
CLEANLINESS
What Does Doctor's Best L-Theanine with Suntheanine, 150 mg, 90 Veggie Caps Do?
Provides branded Suntheanine to promote relaxation and calm focus without daytime sedation, though the 150 mg serving sits slightly below the standard 200 mg clinical trial dose.
Can I take this together with my morning coffee?
Will 150 mg of L-theanine make me feel drowsy during work?
Is it safe to take a second capsule if 150 mg feels insufficient?
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What Are the Benefits of Doctor's Best L-Theanine with Suntheanine, 150 mg, 90 Veggie Caps?
Based on proven scientific research
Acute stress and tension reductionModerate
Sustained attention and focusModerate
Restful sleep onsetModerate
Alpha brain wave stimulationModerate
Good For:
What Are the Side Effects of Doctor's Best Doctor's Best L-Theanine with Suntheanine, 150 mg, 90 Veggie Caps?
Always consult your health practitioner if in doubt.
RiskLow Risk
Overview
•Sedative medications: L-theanine may enhance central nervous system depression; monitor for excessive drowsiness if combined.
•Antihypertensive drugs: L-theanine can modestly lower blood pressure; monitor readings if using blood pressure medication.
•Pregnancy and breastfeeding: clinical safety data are lacking; avoid supplemental doses above dietary intake from tea.
•Stop and get advice if: severe dizziness or lightheadedness: indicates possible hypotension; discontinue use
•Stop and get advice if: signs of an allergic reaction (rash, facial swelling, difficulty breathing): discontinue immediately
Potential Side Effects
Negative Interactions
Inactive Ingredients
Safe Formulation!
Great news, this product doesn't contain harmful ingredients!
What Are the Ingredients in Doctor's Best Doctor's Best L-Theanine with Suntheanine, 150 mg, 90 Veggie Caps?
L-Theanine (Suntheanine®)
150 mg
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Dosage & Bioavailability
How the active doses and forms in Doctor's Best L-Theanine with Suntheanine, 150 mg, 90 Veggie Caps compare to the research.
•L-Theanine (Suntheanine®) — 150 mg a day; studies use 200-400 mg/day.
•Suntheanine® form noted.
Frequently Asked Questions
Common questions about Doctor's Best Doctor's Best L-Theanine with Suntheanine, 150 mg, 90 Veggie Caps