Life Extension Cognitex® Elite
vs
Life Extension Serene Sleep
Supplement Comparison

  • Ashwagandha: Life Extension Cognitex® Elite has 4.2% more
  • The image below shows:
    • Side-by-side charts with label nutrient amounts, per serving
    • Nutrient forms as listed on the label
    • 14 nutrients compared
Bar chart: per-serving label amounts and listed forms for Life Extension Cognitex® Elite vs Life Extension Serene Sleep.

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Frequently asked questions

Which active ingredients does Life Extension Cognitex® Elite have?

  • Calcium appears as DiCalcium Phosphate
  • Phosphorus appears as DiCalcium Phosphate
  • Phosphatidylserine
  • Uridine-5-Monophosphate
  • Ashwagandha appears as Sensoril Ashwagandha
  • Wild Blueberry Complex
  • Sage appears as SIBELIUS SAGE extract
  • Vinpocetine

Which active ingredients does Life Extension Serene Sleep have?

  • Ashwagandha appears as Shoden ashwagandha extract
  • Black Cumin Extract appears as BlaQmax black cumin

Which categories do Life Extension Cognitex® Elite and Life Extension Serene Sleep belong to?

  • Antioxidant Complex
  • Herbal Extract
  • Sleep Formula

What health concerns do Life Extension Cognitex® Elite and Life Extension Serene Sleep address?

  • Brain, Focus & Cognitive Function
  • Mood Support
  • Sleep Quality
  • Stress Management

Which product has a higher amount of Ashwagandha per serving?

  • Life Extension Cognitex® Elite has the highest total amount of Ashwagandha: 125 mg per serving

How do the serving sizes compare between the two supplements?

  • Serving size:
    • Life Extension Cognitex® Elite: 2 tablets
    • Life Extension Serene Sleep: 1 softgel
  • Calcium
    • This supplement has 200 mg
    • Recommended Dietary Allowance in men: 1000 mg
    • Recommended Dietary Allowance in women: 1000 mg
    • Tolerable Upper Intake Level: 2500 mg
  • Phosphorus
    • This supplement has 160 mg
    • Recommended Dietary Allowance in men: 700 mg
    • Recommended Dietary Allowance in women: 700 mg
    • Tolerable Upper Intake Level: 4000 mg

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.
  • 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