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CoQ-10 ZEN

product on market Capsule Natural Rhythm Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 100% of ingredients have research evidence
A Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · grounded in 1 source · methodology

Coenzyme Q10 and L-carnitine are supported by moderate evidence for supporting cellular energy production and mitochondrial function. L-theanine is researched for its ability to promote relaxation without sedation. Overall, the evidence coverage for this specific combination is limited.

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

Label

Product Label

Label for CoQ-10 ZEN
Open Full PDF View on NIH DSLD →
Details

Label Data

1 Vegetable Capsule(s)
Serving Size
30
Servings
Non-Nutrient/Non-Botanical
Product Type
100%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

15 mg
Market median: 200.0mg (358 products) 9 studies (A:0, B:2)
125 mg
Market median: 500.0mg (861 products) 61 studies (A:4, B:13)
100 mg
Market median: 100.0mg (283 products) 144 studies (A:1, B:64)

Other Ingredients

Hypromellose Microcrystalline Cellulose vegetarian Leucine
Claims

Label Claims — Verification

Unverified All Other
Unverified Qualified Health
Unverified Structure/Function
Info

Product Information

Directions for Use

Suggested use: As a dietary supplement, take 1 capsule daily with a meal, or as directed by your healthcare practitioner.

Warnings & Precautions

Caution: Discontinue use 2 weeks prior to surgery.

Warning: If pregnant or nursing, consult your healthcare practitioner before taking this product.

Keep out of reach of children.

Formulation Notes

CoQ-10 for Your Heart CoQ-10 supports cardiovascular functions and is an essential catalyst for the creation of energy at the cellular level. Coenzyme Q10 is an important free-radical fighter and is recommended to support proper heart, liver and gum tissue functions.

L-Carnitine for Your Mind & Muscles L-Carnitine boosts physical and mental energy and endurance, reduces fatigue and muscle loss, and enhances cognitive function.

L-Theanine for Your Stress & Anxiety L-Theanine is an amino acid found naturally in green tea and may help alleviate, improve sleep, and reduce stress.

Pure. Max absorption. Easy on stomach.

CoQ10 + L Carnitine + L-Theanine

To support cardiovascular functions, and help reduce stress & anxiety

Vegetarian

Gluten free

Non-GMO ingredients

Color of this product may vary due to color variations of the natural ingredients.

No Gluten, soy, milk, preservatives, or animal products. Formulated without eggs, fish, shellfish, tree nuts, peanuts, or wheat. Yay!!

Additional Information

GMP Good Manufacturing Practice Quality Product

Store in a cool, dry place.

Metadata

Product Details

UPC / SKU7 64804 31745 9
DSLD Entry Date2022-06-16
Product TypeNon-Nutrient/Non-Botanical
FormCapsule
BrandNatural Rhythm
DSLD ID271240
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
View all evidence for L Theanine →
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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.