🟢 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)
This product: 100mg

Other Ingredients

RICE FLOUR Cellulose Silicon Dioxide MAGNESIUM STEARATE

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)

Product Information

📋 Directions for Use

DIRECTIONS: TAKE 1 CAPSULE, UP TO TWO TIMES PER DAY WITH WATER OR JUICE ON AN EMPTY STOMACH.

⚠️ Warnings & Precautions

NOTE: IF YOU ARE PREGNANT, NURSING, HAVE ANY HEALTH CONDITION OR ARE TAKING ANY MEDICATIONS CONSULT YOUR HEALTH CARE PRACTITIONER BEFORE USING THIS PRODUCT.

TAMPER EVIDENT, USE ONLY IF SEAL IS INTACT

ALLERGEN INFORMATION: PROCESSED IN A FACILITY THAT ALSO PROCESSES TREE NUTS, MILK, EGGS, SHELLFISH, FISH, WHEAT AND SOY.

KEEP OUT OF REACH OF CHILDREN.

🧪 Formulation Notes

ALLERGEN INFORMATION: CONTAINS SHELLFISH (SHRIMP, CRAB) INGREDIENTS. GOOD MANUFACTURING PRACTICES USED TO SEGREGATE INGREDIENTS IN A FACILITY THAT ALSO PROCESSES TREE NUTS, MILK, EGG, FISH, WHEAT AND SOY INGREDIENTS.

CONTAINS NO ARTIFICIAL COLORS, FLAVORS OR PRESERVATIVES.

Additional Information

Suntheanine(R)

{recycle} 1 PETE

PLEASE RECYCLE THIS BOTTLE

100% PCR Post Consumer Recycled Bottle

PRODUCT OF USA

Supports Non-Drowsy Mental and Physical Relaxation

(Q) WHOLE FOODS MARKET QUALITY STANDARDS

STORE IN A COOL, DRY PLACE.

100 mg

L-THEANINE IS AN AMINO ACID FOUND IN GREEN TEA THAT PROMOTES NON-DROWSY RELAXATION.

Product Details

UPC / SKU 0 99482 28523 4
DSLD Entry Date 2013-10-25
Product Type Non-Nutrient/Non-Botanical
Form Capsule
Brand Whole Foods
DSLD ID 26547
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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