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Quick Facts
- Form
- Capsules
- Dose
- 200mg L-theanine
- Serving
- 1 capsule
- Servings
- 120
- Vegan
- Yes
- Made in
- USA
NOW Foods L-Theanine 200mg
by NOW Foods
Pure L-theanine derived from green tea, delivering 200mg per capsule — the dose used in most clinical studies. L-theanine promotes alpha brain waves associated with relaxed alertness without causing drowsiness. Extremely popular as a stack with caffeine for focused productivity. NOW Foods provides one of the best value L-theanine options available in the UK market.
AI Review Summary
NOW Foods L-Theanine is arguably the best value L-theanine product for UK consumers. The use of patented Suntheanine ensures pure L-isomer content, which is the bioactive form. 120 capsules at 200mg matches the clinical dose and provides a four-month supply. The bonus inositol adds complementary calming effects. A staple recommendation in the nootropics community for good reason.
Pros
- +Patented Suntheanine for verified L-isomer purity
- +120 capsules — four months' supply
- +Includes 100mg inositol as a bonus ingredient
- +Clinical 200mg dose per capsule
Cons
- -Standard NOW Foods filler profile
- -Effects are subtle — not a strong anxiolytic
- -Some users report no noticeable benefit
Best For
Watch Out
- !Very subtle effects — don't expect dramatic changes
- !May cause slight drowsiness in some people at higher doses
Ingredients & Composition
Active Ingredients
- L-Theanine (Suntheanine)
- 200mg
- Inositol
- 100mg
Other Ingredients
Cellulose (capsule), Rice flour, Silica, Magnesium stearate
Clean Label Analysis
Standard NOW Foods excipients. The inclusion of 100mg inositol is a nice bonus for additional calming support. Uses the patented Suntheanine brand which is enzymatically produced for pure L-isomer content.
Quality & Testing
Third-Party Tested
This product has been independently tested by third-party laboratories for purity, potency, and safety.
Certifications
Additional Specifications
- Type
- Amino Acid
- Form
- Capsules
- Dose
- 200mg L-theanine
- Serving Size
- 1 capsule
- Fillers Analysis
- Standard NOW Foods excipients. The inclusion of 100mg inositol is a nice bonus for additional calming support. Uses the patented Suntheanine brand which is enzymatically produced for pure L-isomer content.
- Allergens
- Free from: gluten, dairy, soy, eggs, nuts, shellfish
- Made In
- USA
How We Score Supplements
Our AI analyses reviews from Reddit, Amazon, YouTube, and specialist forums, then scores each product on a 1-10 scale across six evidence-based categories:
Effectiveness
How well the product delivers its claimed benefits, based on aggregated user experiences.
Ingredient Quality
Bioavailable forms, clean label, minimal fillers, no artificial junk. Higher = cleaner.
Value for Money
Price per serving relative to ingredient quality and effectiveness.
Side Effects Profile
Higher score = fewer side effects. 10 means virtually no adverse reactions reported.
Certifications & Testing
Third-party lab testing, GMP certification, and independent quality verification.
Overall Score
Weighted combination of all factors. Our bottom-line recommendation.
Disclaimer: AIScored provides AI-generated summaries based on publicly available reviews and product information. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Affiliate links may earn us a commission at no extra cost to you.