🟢 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 Softgel(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)
This product: 200mg

Other Ingredients

Coconut Oil, Virgin Gelatin Glycerin Water, Purified Beeswax

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

Product Information

📋 Directions for Use

Suggested Use: Adults take 1 softgel daily with or without food, or as recommended by a qualified healthcare professional.

⚠️ Warnings & Precautions

Caution: Keep out of reach of children and pets.

Caution: Keep out of reach of children and pets. Do not exceed recommended daily intake. Do not use if safety seal is damaged or missing.

Consult with a qualified healthcare professional prior to using this product, especially if you are pregnant, nursing, have a diagnosed medical condition, are taking a prescription medication.

Contains: Tree nuts (coconut).

🧪 Formulation Notes

Quality matters: IGEN Non-GMO Tested Non-GMO tested Gluten-free

Third party tested cGMP Compliant

Double strength When compared to standard L-Theanine softgels with only 100mg content. Supports relaxation & focus

L-Theanine 200mg per serving Suntheanine

NON BPA Gluten-free Non-GMO

Proudly manufactured in the USA with carefully selected ingredients of domestic and international origins.

Additional Information

IGEN Non-GMO Tested

Store at room temperature, in a dry place. Protect product from excessive heat, freezing, humidity and light.

HDPE Please recycle Scan for more

@sportsresearch

Product Details

UPC / SKU 0 23249 01017 3
DSLD Entry Date 2025-02-23
Product Type Non-Nutrient/Non-Botanical
Form Softgel Capsule
DSLD ID 326262
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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