L-Theanine 200 mg
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 Tablet(s)
Serving Size
60
Servings
Non-Nutrient/Non-Botanical
Product Type
100%
Evidence Coverage
Supplement Facts — Evidence Check
200 mg
📊 Market median: 200.0mg (358 products)
📚 9 studies (Tier A: 0, B: 2)
Other Ingredients
Calcium Carbonate
L-Theanine
Cellulose
Anti-Caking Agents
cross-linked Cellulose Gum
Tablet Coating
Label Claims — Verification
❓
Nutrient
❓
All Other
All Other (99% of products)
Structure/Function (92% of products)
Nutrient (22% of products)
Target Groups
Vegan
Vegetarian
Adult (18 - 50 Years)
Women (not pregnant or lactating)
Product Information
📋 Directions for Use
Directions: Take 1 tablet with a meal, or as directed by a practitioner or pharmacist.
⚠️ Warnings & Precautions
To be taken on the advice of a practitioner or pharmacist only.
Do not exceed recommended daily dose. Food supplements should not replace a balanced diet and a healthy lifestyle.
Caution: Do not take if pregnant or breast feeding.
Keep away from children.
🧪 Formulation Notes
Pure, Free-Form Fast Release
Lamberts amino acids are presented in their free-form, which means that they are ready to be absorbed and used by the body.
Suitable for vegetarians Suitable for vegans
Additional Information
Store in a cool, dry place.
The Professional Range
Product Details
UPC / SKU
5 055148 405397
DSLD Entry Date
2021-06-23
Product Type
Non-Nutrient/Non-Botanical
Form
Tablet or Pill
Brand
Lamberts Healthcare
DSLD ID
251060
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
B
The effects of L-theanine consumption on sleep outcomes: A systematic review and meta-analysis
B
The combination of L-theanine and caffeine improves cognitive performance and increases subjective alertness
B
Effects of L-Theanine Administration on Stress-Related Symptoms and Cognitive Functions in Healthy Adults: A Randomized Controlled Trial
B
The Role of Supplements and Over-the-Counter Products to Improve Sleep in Children: A Systematic Review
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
B
Effect of Alpha-S1-Casein Tryptic Hydrolysate and L-Theanine on Poor Sleep Quality: A Double Blind, Randomized Placebo-Controlled Crossover Trial
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
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