🟢 90/100

This product looks safe

  • Contains proprietary blend — exact ingredient amounts not disclosed
  • 67% of ingredients have research evidence
A Label Compliance Grade

Product Label

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Safety Alerts

ℹ️ Contains proprietary blend — exact ingredient amounts not disclosed

Label Data

2 Capsule(s) Serving Size
30 Servings
Other Combinations Product Type
67% Evidence Coverage

Supplement Facts — Evidence Check

400 mg
📊 Market median: 200.0mg (358 products) 📚 9 studies (Tier A: 0, B: 2)
This product: 400mg
3 mg
📊 Market median: 3.0mg (984 products) 📚 236 studies (Tier A: 2, B: 109)
This product: 3mg UL 10mg
Proprietary Blend
530 mg

Other Ingredients

Vegetable Capsule organic Rice concentrate Silica

Label Claims — Verification

All Other
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

Suggested Use Take 1-2 capsules at bedtime or as directed by your healthcare provider. Do not exceed suggested use.

⚠️ Warnings & Precautions

This product has a tamper evident seal under the cap. Do not use if seal is broken or missing.

If you are pregnant or nursing, consult your healthcare provider before use.

Keep out of reach of children.

🧪 Formulation Notes

Serotonin/GABA

Additional Information

Store at room temperature, in a dry place.

NeuroScience Quality Consistent products, consistent results. Scan to learn more.

Product Details

UPC / SKU 6 59468 10166 0
DSLD Entry Date 2021-02-25
Product Type Other Combinations
Form Capsule
DSLD ID 244018
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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