Douglas Laboratories Querciplex
vs
Metagenics CardioLux® HDL
Supplement Comparison

  • Quercetin: Metagenics CardioLux® HDL has 2.0× more
  • The image below shows:
    • Side-by-side charts with label nutrient amounts, per serving
    • Nutrient forms as listed on the label
    • 11 nutrients compared
Bar chart: per-serving label amounts and listed forms for Douglas Laboratories Querciplex vs Metagenics CardioLux® HDL.

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Frequently asked questions

Which active ingredients does Douglas Laboratories Querciplex have?

  • Vitamin C appears as Ascorbic Acid
  • Quercetin appears as Quercefit Quercetin Phytosome (Sophora japonica extract flower sunflower phospholipid complex)
  • Bromelain appears as Bromelain (Ananas comosus stem)

Which active ingredients does Metagenics CardioLux® HDL have?

  • Vitamin E appears as d-Alpha Tocopheryl Succinate
  • Lycopene
  • Quercetin
  • Pomegranate appears as Pomegranate (Punica granatum L.) Whole Fruit Extract standardized to gallic acid equivalent (GAE) and punicalagins

Which categories do Douglas Laboratories Querciplex and Metagenics CardioLux® HDL belong to?

  • Antioxidant Complex
  • Herbal Extract
  • Metabolic Support Formula

What health concerns do Douglas Laboratories Querciplex and Metagenics CardioLux® HDL address?

  • Immune System Support
  • Respiratory Health
  • Cholesterol Support
  • Heart & Cardiovascular Health

Which product has a higher amount of Quercetin per serving?

  • Metagenics CardioLux® HDL has the highest total amount of Quercetin: 500 mg per serving

How do the serving sizes compare between the two supplements?

  • Serving size:
    • Douglas Laboratories Querciplex: 1 capsule
    • Metagenics CardioLux® HDL: 2 capsules
  • Vitamin C
    • This supplement has 100 mg
    • Recommended Dietary Allowance in men: 90 mg
    • Recommended Dietary Allowance in women: 75 mg
    • Tolerable Upper Intake Level: 2000 mg
  • Vitamin E
    • This supplement has 134 mg
    • Recommended Dietary Allowance in men: 15 mg
    • Recommended Dietary Allowance in women: 15 mg
    • Tolerable Upper Intake Level: 1000 mg

Last updated: February 9, 2026

  • Sources & Methodology: Nutrient data and forms are taken directly from Supplement Facts labels. Reviewed and standardized by the VIOscan Research Team. Learn more on the Methodology page.
  • We show the Recommended Dietary Allowance (RDA) when available. If no RDA exists, we show the Adequate Intake (AI). Tolerable Upper Intake Levels (UL) are used for upper limits. Unless otherwise noted, RDAs shown correspond to healthy adults aged 19–50 years and are sex-specific. Separate values exist for 51–70 years and >70 years, and pregnancy and lactation are excluded. All values come from the Dietary Reference Intakes (DRIs) published by the National Academies of Sciences, Engineering, and Medicine (NASEM), Food and Nutrition Board (FNB).
  • Transparency: We’re funded by our users. We don’t have sponsors or affiliate links, and we don’t sell supplements.
  • Editorial standards: we provide independent, impartial and objective data analysis.
  • This analysis is for educational purposes only. It is not a substitute for medical advice.
  • Questions? Read our Frequently Asked Questions or contact us, we’re here to help.
  • See an error? Report it through our Contact page.
  • Author: VIOscan Research Team