NOW Liquid CoQ10, 100 mg, 4 fl oz supplement bottle
NOW

Liquid CoQ10, 100 mg, 4 fl oz

What We Researched
14 active ingredients analyzed · 11 inactive ingredients decoded · 5 brand certifications checked · 2 retailers compared · Last updated: Mar 2026
87
Product Score Good
89
Brand Score Good

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Vitamin E (from Mixed Tocopherols) 30 IU 100%
Vitamin B3 (from NAD Trihydrate) 0.7 mg 4%
Vitamin B6 (from P-5-P Monohydrate) 7 mg 350%
Vitamin B12 (as Cyanocobalamin) 100 mcg 1,667%
Vitamin B5 (as Pantethine) 5 mg 50%
Coenzyme Q10 (CoQ10) 100 mg *
Stevia Extract (Leaf) (Stevia rebaudiana)(min 80% Rebaudioside-A) 20 mg *
D-Ribose 10 mg *
NAD (Nicotinamide Adenine Dinucleotide) Trihydrate 5 mg *
Bioavailability Very Good

Absorption Rating

  • Vitamin E (from Mixed Tocopherols) Good
  • Vitamin B3 (from NAD Trihydrate) Good
  • Vitamin B6 (from P-5-P Monohydrate) Fair
  • Vitamin B12 (as Cyanocobalamin) Fair
  • Vitamin B5 (as Pantethine) Good
  • Coenzyme Q10 (CoQ10) Good
  • Stevia Extract (Leaf) (Stevia rebaudiana)(min 80% Rebaudioside-A) Good
  • D-Ribose Good
  • NAD (Nicotinamide Adenine Dinucleotide) Trihydrate Good
Other Ingredients Excellent

Fillers & Additives

  • De-ionized Water
  • Rice Bran Oil
  • Vegetable Glycerine
  • Soy Lecithin
  • Xylitol
  • Natural Vanilla Flavor
  • Natural orange flavors
  • Brown Rice Protein
  • Rosemary extract (rosmarinus officinalis) (leaf)
  • Citric Acid
  • Potassium sorbate (as preservative) and Guar gum
Efficacy Good

Dosage Analysis

  • Vitamin E (from Mixed Tocopherols) 30 IU Effective
  • Vitamin B3 (from NAD Trihydrate) 0.7 mg Under-dosed
  • Vitamin B6 (from P-5-P Monohydrate) 7 mg Effective
  • Vitamin B12 (as Cyanocobalamin) 100 mcg Effective
  • Vitamin B5 (as Pantethine) 5 mg Effective
  • Coenzyme Q10 (CoQ10) 100 mg Effective
  • D-Ribose 10 mg Under-dosed
  • NAD (Nicotinamide Adenine Dinucleotide) Trihydrate 5 mg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Calories 20
Calories from Fat 15
Total Fat 2 g 3%
Trans Fat 0 g
Total Carbohydrate 1 g < 1%
Vitamin E (from Mixed Tocopherols) 30 IU 100%
Vitamin B3 (from NAD Trihydrate) 0.7 mg 4%
Vitamin B6 (from P-5-P Monohydrate) 7 mg 350%
Vitamin B12 (as Cyanocobalamin) 100 mcg 1,667%
Vitamin B5 (as Pantethine) 5 mg 50%
Coenzyme Q10 (CoQ10) 100 mg *
Stevia Extract (Leaf) (Stevia rebaudiana)(min 80% Rebaudioside-A) 20 mg *
D-Ribose 10 mg *
NAD (Nicotinamide Adenine Dinucleotide) Trihydrate 5 mg *

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

De-ionized Water Safe

It is used as a solvent to dissolve and mix ingredients.

Rice Bran Oil Safe

It is used as a carrier oil.

Vegetable Glycerine Safe

It is used as a solvent, humectant, and sweetener.

Soy Lecithin Safe

Helps blend oil and water-based ingredients. Common allergen.

Xylitol Safe

Provides sweetness with reduced calorie content. Does not promote tooth decay.

Natural Vanilla Flavor Generally_safe

It is used to enhance the taste of the supplement.

Natural orange flavors Unknown
Brown Rice Protein Generally_safe

It is used as a filler and source of protein.

Rosemary extract (rosmarinus officinalis) (leaf) Unknown
Citric Acid Safe

Adds tartness and acts as a natural preservative. Also aids in ingredient stability.

Potassium sorbate (as preservative) and Guar gum Unknown

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$16$15$14$13$12 Mar 12 $14.19
Vitacost

Prices shown at time of last check. Click a retailer to see current price. GoodSupp is not affiliated with any retailer.

Brand Trust Report
NOW

Founded 1968 · Bloomingdale, Illinois, USA · 53 products · nowfoods.com

Certifications

5 certifications
Informed Sport Verified Source
Npa Gmp Verified Source
Fda Gmp Inspections Verified Source
Non Gmo Project Verified Source
Usda Organic Verified Source

Transparency

3 claims
Third Party Testing Claim — Verified Source
Testing Lab Disclosure — Claimed
In House Testing — Verified Source
Related Supplements
Frequently Asked Questions
Is NOW Liquid CoQ10, 100 mg a good supplement?

NOW Liquid CoQ10, 100 mg, 4 fl oz received a product quality score of 87/100 in GoodSupp's independent analysis, indicating strong overall quality. The product contains 14 active ingredients with 23 servings per container. Of the 11 inactive ingredients, 6 are rated safe and 0 are flagged for review. The manufacturer, NOW, holds a brand trust score of 89/100 with 5 verified certifications including Informed Sport, Npa Gmp, Fda Gmp Inspections, Non Gmo Project.

What are the ingredients in NOW Liquid CoQ10, 100 mg?

NOW Liquid CoQ10, 100 mg contains 14 active ingredients: Calories (20), Calories from Fat (15), Total Fat (2 g), Trans Fat (0 g), Total Carbohydrate (1 g), Vitamin E (from Mixed Tocopherols) (30 IU), and 8 more. Notable high-dose ingredients include Vitamin B6 at 350% DV, Vitamin B12 at 1,667% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is NOW Liquid CoQ10, 100 mg safe to take?

NOW Liquid CoQ10, 100 mg, 4 fl oz has been analyzed for ingredient safety across all its components. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is NOW a trustworthy supplement brand?

NOW receives a brand trust score of 89/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1968 and headquartered in Bloomingdale, Illinois, USA, the company offers 53 products in their lineup. They hold 5 verified certifications including Informed Sport, Npa Gmp, Fda Gmp Inspections, Non Gmo Project. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. No regulatory violations or FDA warning letters were found in our research.

What is coq10?

Coq10 is a topic many supplement consumers ask about. In the context of dietary supplements, understanding coq10 helps you make more informed choices about what you put in your body. The quality and form of ingredients matters significantly — two products listing the same ingredient can differ dramatically in bioavailability and effectiveness. GoodSupp analyzes over 250,000 supplement products to help consumers understand exactly what's in their supplements and whether the formulation meets quality standards.

What is coq10 good for?

Coq10 Good For is a topic many supplement consumers ask about. In the context of dietary supplements, understanding coq10 good for helps you make more informed choices about what you put in your body. The quality and form of ingredients matters significantly — two products listing the same ingredient can differ dramatically in bioavailability and effectiveness. GoodSupp analyzes over 250,000 supplement products to help consumers understand exactly what's in their supplements and whether the formulation meets quality standards.

How much coq10 should i take?

The optimal dosage depends on your individual health needs, age, sex, and current nutrient levels. Recommended daily amounts are established by health authorities but may vary from therapeutic doses used in clinical research. It's important to check the Supplement Facts label for the exact amount per serving and compare it against the % Daily Value. Some supplements provide mega-doses well above the Daily Value, which may not be necessary and in some cases could be harmful — particularly for fat-soluble vitamins (A, D, E, K) that accumulate in the body. GoodSupp's efficacy analysis evaluates whether a product's dosages align with clinically studied amounts. Always consult your healthcare provider for personalized dosage recommendations.

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Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.