🟢 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
120 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)
This product: 200mg
3 mg
📊 Market median: 3.0mg (984 products) 📚 236 studies (Tier A: 2, B: 109)
This product: 3mg UL 10mg

Other Ingredients

Vegetable Capsule Microcrystalline Cellulose Silicon Dioxide Vegetable 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

Vegetarian Adult (18 - 50 Years) Kosher Women (not pregnant or lactating) Gluten Free Dairy Free

Product Information

📋 Directions for Use

Recommended dosage: As a dietary supplement, take one capsule thirty (30) minutes before bedtime.

⚠️ Warnings & Precautions

Caution: When using nutritional supplements, please inform your healthcare professional if you have a medical condition, are taking medication, or are experiencing long term sleep difficulties.

Ask a doctor before use in children.

Not intended for use by pregnant or lactating women.

This product may cause drowsiness. Do not drive or operate machinery when taking this product.

If you are currently taking prescription antidepressants such as MAOI’s or SSRI’s, consult your physician before taking this product.

Warning: Keep out of reach of children.

🧪 Formulation Notes

Promotes a calm and restful sleep

Natural ingredients

Star K Kosher

No peanuts, eggs, dairy, soy, wheat, yeast, gluten, tree nuts, crustacean shellfish, fish, or other animal byproducts.

100% vegetarian

Additional Information

Discover the treasures of nature Dig into earth's boundless reserves of essential vitamins to restore your innate equilibrium. Good health from the source.

Store in cool dry place.

Star K Kosher

GMP Good Manufacturing Practice Consistent Quality

Made in U.S.A.

Product Details

UPC / SKU 6 86149 70052 2
DSLD Entry Date 2020-06-24
Product Type Non-Nutrient/Non-Botanical
Form Capsule
DSLD ID 229374
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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