L-Theanine 100 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 Capsule(s)
Serving Size
Non-Nutrient/Non-Botanical
Product Type
100%
Evidence Coverage
Supplement Facts — Evidence Check
100 mg
📊 Market median: 200.0mg (358 products)
📚 9 studies (Tier A: 0, B: 2)
Other Ingredients
Rice Flour
Gelatin
Magnesium Stearate
Silicon Dioxide
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: As a dietary supplement, take one (1) capsule two or three times daily.
⚠️ Warnings & Precautions
Warning: Consult your healthcare provider prior to use if you are pregnant, nursing, taking any medication or have any medical conditions.
Keep out of reach of children.
Tamper evident Do not use if outer seal is broken or missing.
🧪 Formulation Notes
Gluten free Dairy free Soy free Nut free
Does not contain: Yeast, Corn, Wheat, Soy, Dairy, Citrus, Fish, Artificial Colors or Flavors.
Additional Information
Specialty
Clinically studied ingredient
Relaxation
Actual size
Store in a cool, dry place.
Visit www.vitaminshoppe.com or call 1-800-223-1216 for more information and to reorder.
Item No. VS-2755 2086486 FQ 52
Bonus size 20% more
Product Details
UPC / SKU
7 66536 02755 2
DSLD Entry Date
2016-09-22
Product Type
Non-Nutrient/Non-Botanical
Form
Capsule
Brand
The Vitamin Shoppe
DSLD ID
64662
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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