nutricost
Caffeine with L-Theanine
82/100
SUPPIE SCORE
82/100
EFFICACY
High
SAFETY
76/100
CLEANLINESS
What Does Caffeine with L-Theanine Do?
Well-researched 1:1 caffeine/L-theanine ratio at effective 100mg doses. Excellent for focus without jitters. Gelatin capsules limit vegans. Very low risk for healthy adults.
What are the evidence-based benefits of combining caffeine and L-theanine?
Is 100mg caffeine with 100mg L-theanine effective for focus and alertness?
What is the optimal ratio of L-theanine to caffeine for cognitive benefits?
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What Are the Benefits of Caffeine with L-Theanine?
Based on proven scientific research
FocusStrong
AlertnessStrong
Cognitive performanceModerate
Reduced jittersModerate
Good For:
What Are the Side Effects of nutricost Caffeine with L-Theanine?
Always consult your health practitioner if in doubt.
RiskLow Risk
Overview
•100mg caffeine is moderate dose; safe for most healthy adults up to 400mg daily
•1:1 caffeine:L-theanine ratio well-studied; reduces caffeine jitters/anxiety
•Gelatin capsules unsuitable for vegetarians/vegans; potential pork allergen
•Avoid in pregnancy (>200mg caffeine daily risk); consult physician
•Non-GMO, gluten-free formulation minimizes common allergen exposure
•Long-term use safe at this dosage for healthy adults; cycle if sensitive
Potential Side Effects
Negative Interactions
Inactive Ingredients
Low Risk
Medium Risk
Low Risk
Low Risk
Low Risk
What Are the Ingredients in nutricost Caffeine with L-Theanine?
Caffeine Anhydrous
100mg
L-Theanine
100mg
Rice flour
Gelatin capsule
Microcrystalline cellulose
Magnesium stearate
Silica
Sources & References
Frequently Asked Questions
Common questions about nutricost Caffeine with L-Theanine