Life Extension NAD+ Cell Regenerator and Resveratrol Elite
vs
Douglas Laboratories Cysto Renew
Supplement Comparison

  • Quercetin: Douglas Laboratories Cysto Renew has 100× more
  • The image below shows:
    • Side-by-side charts with label nutrient amounts, per serving
    • Nutrient forms as listed on the label
    • 16 nutrients compared
Bar chart: per-serving label amounts and listed forms for Life Extension NAD+ Cell Regenerator and Resveratrol Elite vs Douglas Laboratories Cysto Renew.

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Frequently asked questions

Which active ingredients does Life Extension NAD+ Cell Regenerator and Resveratrol Elite have?

  • Nicotinamide Riboside appears as Niagen Nicotinamide Riboside Chloride
  • Quercetin appears as Bio-Quercetin
  • Resveratrol appears as Trans-Resveratrol
  • Fisetin appears as Bio-Fisetin

Which active ingredients does Douglas Laboratories Cysto Renew have?

  • Magnesium appears as Magnesium Amino Acid Chelate
  • L-Arginine
  • Quercetin appears as Quercetin Dihydrate
  • Bromelain
  • Chondroitin Sulfate
  • L-Citrulline
  • Blend appears as Cysto Renew Proprietary Blend (Rhodiola rosea Extract, Lemon Balm Extract, Aloe Vera inner leaf)

Which categories do Life Extension NAD+ Cell Regenerator and Resveratrol Elite and Douglas Laboratories Cysto Renew belong to?

  • Antioxidant Complex
  • Herbal Extract

What health concerns do Life Extension NAD+ Cell Regenerator and Resveratrol Elite and Douglas Laboratories Cysto Renew address?

  • Antioxidant Support
  • Brain, Focus & Cognitive Function
  • Energy & Metabolism
  • Healthy Aging & Longevity
  • Anti-Inflammatory Support
  • Kidney, Bladder, Urinary Health
  • General Health

Which product has a higher amount of Quercetin per serving?

  • Douglas Laboratories Cysto Renew has the highest total amount of Quercetin: 500 mg per serving

How do the serving sizes compare between the two supplements?

  • Serving size:
    • Life Extension NAD+ Cell Regenerator and Resveratrol Elite: 1 capsule
    • Douglas Laboratories Cysto Renew: 4 capsules

Last updated: February 13, 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.
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  • See an error? Report it through our Contact page.
  • Author: VIOscan Research Team