🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 50% of ingredients have research evidence
A Label Compliance Grade

Product Label

📸

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Label Data

2 Tablet(s) Serving Size
45 Servings
Non-Nutrient/Non-Botanical Product Type
50% Evidence Coverage

Supplement Facts — Evidence Check

Sodium
10 mg (1% DV)
200 mg
📊 Market median: 200.0mg (358 products) 📚 9 studies (Tier A: 0, B: 2)
This product: 200mg

Other Ingredients

Dextrose Vegetable Cellulose Crospovidone Stearic Acid Natural flavor Stevia extract Contains Less Than 2% of

Label Claims — Verification

All Other
Structure/Function
All Other (99% of products) Structure/Function (92% of products) Nutrient (22% of products)

Target Groups

Adult (18 - 50 Years) Gluten Free Dairy Free

Product Information

📋 Directions for Use

Directions: For adults, take two (2) tablets daily on an empty stomach. Dissolve tablets in mouth before swallowing.

⚠️ Warnings & Precautions

Warning: If you are pregnant, nursing, taking any medications or have any medical condition, consult your doctor before use.

Discontinue use and consult your doctor if any adverse reactions occur.

Keep out of reach of children.

Do not use if seal under cap is broken or missing.

🧪 Formulation Notes

No Artificial Color, No Artificial Flavor, No Preservatives, No Milk, No Lactose, No Soy, No Gluten, No Wheat, No Yeast, No Fish.

L-Theanine 200 mg per serving

Additional Information

L-Theanine is a non-essential amino acid that supports a calm and relaxed mood. L-Theanine is the predominant amino acid of green tea.

Our convenient quick dissolve tablets have a soothing, natural mint flavor.

Quality Assured

Store at room temperature.

To reorder prod. #55493 www.vitaminworld.com 1-800-228-4533

PROD. #55493 B55493 02C

Quick dissolve

Supports a calm, relaxed mood

Product Details

UPC / SKU 7 66443 55493 6
DSLD Entry Date 2016-06-24
Product Type Non-Nutrient/Non-Botanical
Form Tablet or Pill
DSLD ID 60624
Data Updated 2026-04-11

Research Evidence

37 Research Sources
53 Avg Quality Score
22 Rct
10 Systematic Review
3 Meta Analysis
1 Clinical Trial
1 Openfda Safety
B Examining the effect of L-theanine on sleep: a systematic review of dietary supplementation trials
Systematic Review Nutritional neuroscience 2026
B The effects of L-theanine consumption on sleep outcomes: A systematic review and meta-analysis
Meta Analysis Sleep medicine reviews 2025
B The combination of L-theanine and caffeine improves cognitive performance and increases subjective alertness
Rct Nutritional neuroscience 2010
B Effects of L-Theanine Administration on Stress-Related Symptoms and Cognitive Functions in Healthy Adults: A Randomized Controlled Trial
Rct Nutrients 2019
B The Role of Supplements and Over-the-Counter Products to Improve Sleep in Children: A Systematic Review
Systematic Review International journal of molecular sciences 2023
B Effects of Tea (Camellia sinensis) or its Bioactive Compounds l-Theanine or l-Theanine plus Caffeine on Cognition, Sleep, and Mood in Healthy Participants: A Systematic Review and Meta-Analysis of Randomized Controlled Trials
Meta Analysis Nutrition reviews 2025
B Effect of Alpha-S1-Casein Tryptic Hydrolysate and L-Theanine on Poor Sleep Quality: A Double Blind, Randomized Placebo-Controlled Crossover Trial
Rct Nutrients 2022
B Effect of L-theanine on selective attention in a traffic-related reaction task in sleep-deprived young adults: a double-blind placebo-controlled, crossover study
Rct Nutritional neuroscience 2025
B The combined effects of L-theanine and caffeine on cognitive performance and mood
Rct Nutritional neuroscience 2008
B Acute effects of tea constituents L-theanine, caffeine, and epigallocatechin gallate on cognitive function and mood: a systematic review and meta-analysis
Meta Analysis Nutrition reviews 2014
View all evidence for L Theanine →

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