🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 100% of ingredients have research evidence
A Label Compliance Grade

Product Label

📸

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Label Data

1 Capsule(s) Serving Size
Amino acid/Protein Product Type
100% Evidence Coverage

Supplement Facts — Evidence Check

100 mg
📊 Market median: 200.0mg (358 products) 📚 9 studies (Tier A: 0, B: 2)
This product: 100mg

Other Ingredients

L-Theanine Hydroxypropyl Methylcellulose Cellulose Silicon Dioxide Magnesium Stearate

Label Claims — Verification

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

Target Groups

Children 4 or More Years of Age Vegan Vegetarian Adult (18 - 50 Years) No Allergies Gluten Free Dairy Free Sugar Free

Product Information

📋 Directions for Use

DIRECTIONS: Take 1-2 capsules a day (children over 8 years, 1 capsule a day), between meals, or as your health professional advises.

⚠️ Warnings & Precautions

Keep out of reach of children.

Do not exceed recommended daily intake.

🧪 Formulation Notes

DOES NOT CONTAIN: sugar, salt, starch, soya, wheat, gluten, maize, corn, yeast, lactose, dairy products, artificial preservatives, colours or flavourings.

Suitable for vegetarians and vegans.

VEGETARIAN

Additional Information

This bottle has a UV filter.

Ensure lid is tight and store in a cool, dry, steam-free environment as damp conditions can affect the product quality.

QTH060 105 QTH-286-02

Hypo-allergenic formula.

This product is not tested on animals.

Charitable organisations policy: supplements regularly donated

Lid {Recycle} 5 PP

PREMIUM NATURALS

Food supplements should not be used as a substitute for a varied and balanced diet and healthy lifestyle.

Theanine is an amino acid found in green tea.

Jar {Recycle} 1 PET

Product Details

UPC / SKU 5 031013 105074
DSLD Entry Date 2014-12-29
Product Type Amino acid/Protein
Form Capsule
DSLD ID 40863
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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