Kyolic Nattokinase, Suntheanine

product on market Capsule Kyolic 🟢 Safety: 100/100
Brand: Kyolic
🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 67% of ingredients have research evidence
A Label Compliance Grade

Product Label

Label for Kyolic Nattokinase, Suntheanine
📄 Open Full PDF View on NIH DSLD →
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Label Data

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

Supplement Facts — Evidence Check

400 mg
📊 Market median: 500.0mg (497 products) 📚 132 studies (Tier A: 0, B: 40)
This product: 400mg
70 mg
📊 Market median: 100.0mg (70 products)
Median 100.0mg This product: 70mg
24 mg
📊 Market median: 200.0mg (358 products) 📚 9 studies (Tier A: 0, B: 2)
This product: 24mg

Other Ingredients

Gelatin Cellulose Silica Magnesium Stearate

Label Claims — Verification

❓ Nutrient
❓ 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 Sugar Free

Product Information

📋 Directions for Use

SUGGESTED USE: Take two capsules with a meal twice daily.

⚠️ Warnings & Precautions

Do not use if cap drop ring or inner seal is broken or missing.

Nattokinase derived from soybeans.

Keep out of reach of children.

🧪 Formulation Notes

Kyolic(R) Aged Garlic Extract(TM) begins with 100% organically grown garlic bulbs.

Kyolic Formula 109 contains a unique and natural combination of Nattokinase and Suntheanine(R) with Aged Garlic Extract to help relax and support healthy blood pressure through different pathways.

Odorless Organic Garlic Supplement

FREE OF: sodium, yeast, dairy, preservatives, sugar, gluten, artificial color or flavors.

Additional Information

GMP Certified

Clinical studies have shown these ingredients can help support healthy blood pressure levels.

(in compliance with California Certified Organic Farmers).

BLOOD PRESSURE HEALTH FORMULA 109

Store in a cool, dry place with cap tight.

3F02B

L109A42B

Product Details

UPC / SKU 0 23542 10942 0
DSLD Entry Date 2015-02-25
Product Type Other Combinations
Form Capsule
Brand Kyolic
DSLD ID 42323
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
PubMed DOI
B The effects of L-theanine consumption on sleep outcomes: A systematic review and meta-analysis
Meta Analysis Sleep medicine reviews 2025
PubMed DOI
B The combination of L-theanine and caffeine improves cognitive performance and increases subjective alertness
Rct Nutritional neuroscience 2010
PubMed DOI
B Effects of L-Theanine Administration on Stress-Related Symptoms and Cognitive Functions in Healthy Adults: A Randomized Controlled Trial
Rct Nutrients 2019
PubMed DOI
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
PubMed DOI
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
PubMed DOI
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
PubMed DOI
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
PubMed DOI
B The combined effects of L-theanine and caffeine on cognitive performance and mood
Rct Nutritional neuroscience 2008
PubMed DOI
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
PubMed DOI
View all evidence for L Theanine →

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