Sundown Co Q-10 100 mg supplement bottle
Sundown

Co Q-10 100 mg Review

What We Researched
1 active ingredient analyzed · 3 inactive ingredients decoded · 3 brand certifications checked · Last updated: Aug 2026
100
Product Score Excellent
81
Brand Score Good

Two independent scores — the product and the brand behind it, never blended into one number. See our methodology.

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Coenzyme Q-10 100 mg †
Bioavailability Excellent

Absorption Rating

  • Coenzyme Q-10 Good
Other Ingredients Excellent

Fillers & Additives

  • Rice Bran Oil
  • Gelatin
  • Vegetable Glycerin
Efficacy Excellent

Dosage Analysis

  • Coenzyme Q-10 100 mg Effective

Supplement Facts

Ingredient Amount % Daily Value
Coenzyme Q-10 100 mg †

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Rice Bran Oil Safe

It is used as a carrier oil.

Gelatin Safe

Forms the capsule shell that holds the supplement contents.

Vegetable Glycerin Safe

Helps form softgel capsule shells and acts as a humectant.

Brand Trust Report
Sundown

Founded 1977 · Bridgewater, NJ, USA · 359 products · sundownnutrition.com/

Certifications

3 certifications
Consumerlab Verified Source
Nsf Gmp Verified Source
Usda Organic Verified Source

Transparency

3 claims
Third Party Testing Claim — Claimed Source
In House Testing — Claimed Source

Violation History

9 incidents
Lawsuit FTC charges of 'review hijacking' on Amazon to mislead consumers.2023Source
Lawsuit Deceptive 'review hijacking' on Amazon to mislead consumers about product ratings and popularity.2023Source
Lawsuit The Bountiful Company, including Sundown Naturals, engaged in 'review hijacking' on Amazon.com to deceive consumers.2023Source
Lawsuit Deceptive labeling of 'Complete' multivitamins that were missing essential B vitamins.2021Source
Lawsuit A class-action lawsuit was filed against Rexall Sundown, Inc., NatureSmart, LLC, and The Bountiful Company for misrepresenting 'Complete' multivitamin gummies that lacked all essential B vitamins.2021Source
Lawsuit Rexall Sundown, Inc. faced a class-action lawsuit for allegedly mislabeling joint health products.2017Source
Recall Rexall Calcium 1200 mg plus 1000IU Vitamin D3, 60 softgels2012-01-16Source
Lawsuit The FTC charged Rexall Sundown, Inc. with making misleading claims about its Cellasene product.2003Source
Lawsuit False and unsubstantiated claims for the 'Cellasene' supplement.2000Source
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Frequently Asked Questions
Is Sundown Co Q-10 100 mg a good supplement?

Sundown Co Q-10 100 mg received a product quality score of 100/100 in GoodSupp's independent analysis, placing it in the top tier of supplements we've analyzed. The product contains 1 active ingredients All 3 inactive ingredients (fillers, binders, capsule materials) are rated safe — a clean formulation with no flagged additives. The manufacturer, Sundown, holds a brand trust score of 81/100 with 3 verified certifications including Consumerlab, Nsf Gmp, Usda Organic.

What are the ingredients in Sundown Co Q-10 100 mg?

Sundown Co Q-10 100 mg contains 1 active ingredients: Coenzyme Q-10 (100 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Sundown Co Q-10 100 mg safe to take?

Sundown Co Q-10 100 mg has been analyzed for ingredient safety across all its components. All 3 inactive ingredients — including capsule materials, fillers, and binders — are rated safe based on regulatory data and published safety research. This is a clean formulation with no controversial additives. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is Sundown a trustworthy supplement brand?

Sundown receives a brand trust score of 81/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1977 and headquartered in Bridgewater, NJ, USA, the company offers 359 products in their lineup. They hold 3 verified certifications including Consumerlab, Nsf Gmp, Usda Organic. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Sundown has 9 historical regulatory incidents on record, which are factored into the trust score.

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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 — read our methodology. 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.