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L-Theanine 200 mg

California Gold Nutrition
4.7
★ ★ ★ ★ ★
(15500 ratings)
Theanine 200 mg
Product Image
Score98

A high-potency 200 mg theanine supplement for deep relaxation and sharp mental focus at an amazing price.

How scoring works
Quantity:60 Capsule(s) • (60 servings)
Goals:
Sleep Support
Mood Support
Cognitive Support
Mental Focus
Productivity Boost
Stress Relief
Brain Health

Score 98

A high-potency 200 mg theanine supplement for deep relaxation and sharp mental focus at an amazing price.

How scoring works

Also available as

1 option
100.00mg • 60 Capsule(s) servings Theanine 100 mg • 60 Capsule(s) • 60 servings $9.43 ($0.15 per serving)
$10.06($0.16 per serving)
iHerb
$ 10.06
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Analysis

California Gold Nutrition delivers a strong 200 mg dose of pure L-theanine, perfect for managing high stress levels or assisting with sleep onset. This potency is often preferred by those who find lower doses too subtle for their needs.

The product maintains high standards for transparency and purity while remaining very affordable. It is one of the most practical choices for anybody looking for clinical-strength mental calm.

Pros

  • Outstanding value for 200 mg
  • Strong clinical potency
  • Clean veggie capsule design
  • Supports deep mental composure

Cons

  • May be too strong for beginners
  • Simple, no-frills formula

Warnings

  • Check how you feel before driving at this dose
  • Reliable for daily long-term use

Nutrient quality

95 Highest impact

A clinical 200mg dose of the primary amino acid is provided for effective support of mental calm. The single-ingredient focus ensures targeted support for alpha brain wave activity.

Ingredient transparency

100 Highest impact

The label clearly discloses the active ingredient and its specific amount per serving. Full transparency regarding serving sizes and excipients allows for a direct assessment of potency.

Customer satisfaction

98 Highest impact

Exceptional ratings across a high volume of reviews confirm that the product is effective and reliable. Users consistently mention success with using it for relaxation and focus.

Value for money

99 Highest impact

The cost per serving is highly competitive for a clinical 200mg dose. It offers exceptional value for individuals seeking effective relaxation support at a low price point.

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Goals

Sleep Support
Impact
Highest effect
A- Goal FitA+ Strength of SupportB- CoverageA+ Formula Quality

L-Theanine is provided in 200mg doses to support relaxation and help reduce occasional stress.

Promoting mental calm may contribute to faster sleep onset without the grogginess associated with some evening aids.

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Mood Support
Impact
Highest effect
A Goal FitA+ Strength of SupportC CoverageA+ Formula Quality

L-Theanine at 200 mg per serving.

Providing a robust dose of this amino acid supports a calm mind and improved focus during periods of stress.

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Cognitive Support
Impact
Highest effect
A- Goal FitA+ Strength of SupportC CoverageA+ Formula Quality

This selection delivers 200mg of L-Theanine per capsule to support a calm and alert mental state. L-Theanine facilitates the production of alpha brain waves, which are associated with relaxed focus.

This high-dose amino acid supplement is ideal for managing stress-induced focus issues. The single-ingredient approach ensures precision and efficacy for those targeting specific relaxation pathways.

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Mental Focus
Impact
Highest effect
A- Goal FitA Strength of SupportC- CoverageA+ Formula Quality

This high-potency supplement provides 200 mg of L-Theanine per capsule, which appears well aligned with promoting a state of calm focus and relaxation. By utilizing the L-isomer, the formula ensures the bioactivity required to modulate alpha brain waves effectively.

The 200 mg dose is optimally aligned with clinical standards for achieving a noticeable therapeutic effect on mental clarity and concentration. The simple capsule format provides a focused and evidence-based approach for those seeking a non-jittery way to enhance cognitive performance.

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Productivity Boost
Impact
Highest effect
A- Goal FitA Strength of SupportC CoverageA+ Formula Quality

L-theanine is provided at a 200mg dose to support relaxed concentration and mental clarity throughout the day. This clinical dosage is effective for modulating brain wave activity and reducing the perception of cognitive stress.

This amino acid is particularly useful for individuals seeking to enhance attention without the jittery effects of traditional stimulants. It represents a clean and straightforward option for improving mental resilience and professional productivity.

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Stress Relief
Impact
Highest effect
A Goal FitA Strength of SupportD+ CoverageA Formula Quality

L-Theanine serves as a calming amino acid that supports the induction of alpha brain waves to promote mental relaxation and focus. Providing 200 mg per serving offers functional support that aligns perfectly with established clinical benchmarks for acute stress modulation.

Utilization of the biologically active L-isomer ensures optimal efficacy for the intended neurological benefits. This single-ingredient capsule appears well aligned for individuals seeking clean and reliable support for mental calm without secondary sedatives.

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Brain Health
Impact
Highest effect
A- Goal FitA Strength of SupportC- CoverageA+ Formula Quality

L-theanine supports focused alertness and relaxation by modulating brain wave activity. This amino acid may contribute to mental performance and resilience during periods of daily stress.

The formulation provides straightforward support for a calm mental state without sedation. Meaningful dosages of the active L-isomer ensure that the biological pathways for mental focus are well addressed.

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Ingredients

IngredientAmount per serving
L-Theanine
200 mg
Gluten Free Adults 18–50 Dairy Free
Report overview
Theanine · 200 mg OverallScore92
B+ Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyA+ Value
This high-potency L-Theanine supplement offers a robust dose to promote relaxation and focus. It is one of the most cost-effective options for pure theanine supplementation available.
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AlphaWave branded theanine offers a premium, standardized material with high bioavailability at a very competitive value point. It is an ideal option for users who want top-tier ingredients without high costs.
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Double Strength L-Theanine 200 mg

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