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Kyolic Nattokinase, Suntheanine

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

This product looks safe

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

What the Evidence Says

AI-generated · Qwen 3.6 · methodology

Aged garlic extract and nattokinase are supported by moderate evidence for promoting cardiovascular health and fibrinolytic activity. Suntheanine is researched for its role in promoting relaxation and cognitive focus. Overall, these ingredients have a well-documented safety profile in clinical literature.

AI-generated summary based on research evidence. Not medical advice.

Label

Product Label

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

Label Data

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

Supplement Facts — Evidence Check

Market median: 500.0mg (497 products) 135 studies (A:0, B:40)
70 mg
Market median: 100.0mg (70 products)
24 mg
Market median: 200.0mg (358 products) 9 studies (A:0, B:2)

Other Ingredients

Gelatin Cellulose Silica Magnesium Stearate
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

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

Metadata

Product Details

UPC / SKU0 23542 10942 0
DSLD Entry Date2015-02-25
Product TypeOther Combinations
FormCapsule
BrandKyolic
DSLD ID42323
Data Updated2026-04-11
Research

Research Evidence

37
Research Sources
53
Avg Quality
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
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.