Sports Research
Double Strength L-Theanine Supplement
90/100
SUPPIE SCORE
85/100
EFFICACY
Low
SAFETY
94/100
CLEANLINESS
What Does Double Strength L-Theanine Supplement Do?
This double-strength 200mg L-Theanine formula offers excellent evidence-based stress relief and focus benefits with optimal dosing. Highly safe for adults, though gelatin may exclude vegans; premium quality enhances value.
What are the primary benefits of L-Theanine for stress reduction?
How does Suntheanine® compare to other forms of L-Theanine in terms of absorption?
Can L-Theanine improve sleep quality without causing drowsiness?
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What Are the Benefits of Double Strength L-Theanine Supplement?
Based on proven scientific research
Stress ReductionStrong
Improved FocusModerate
Better Sleep QualityStrong
Anxiety ReliefModerate
Good For:
What Are the Side Effects of Sports Research Double Strength L-Theanine Supplement?
Always consult your health practitioner if in doubt.
RiskLow Risk
Overview
•L-Theanine at 200mg is well within safe daily limits (up to 400mg studied), with no serious side effects reported in healthy adults per NIH and PubMed reviews.
•Minimal drug interactions; may enhance effects of stimulants like caffeine but unlikely to interact with common medications (examine.com).
•Safe for most adults, including elderly; limited data for pregnancy/breastfeeding—consult physician (Mayo Clinic).
•Gelatin-based softgels pose risk for vegetarians/vegans; no major allergens like nuts or gluten present.
•High-quality manufacturing by Sports Research with third-party testing reduces contamination risks (FDA-compliant).
•Long-term use appears safe based on studies up to 8 weeks; monitor for rare headaches or gastrointestinal upset.
Potential Side Effects
Negative Interactions
Inactive Ingredients
Low Risk
Low Risk
What Are the Ingredients in Sports Research Double Strength L-Theanine Supplement?
L-Theanine (Suntheanine®)
200mg
Organic MCT Oil
Softgel Capsule (Kosher Gelatin, Glycerin, Purified Water)
Sources & References
Frequently Asked Questions
Common questions about Sports Research Double Strength L-Theanine Supplement