Thorne Ultimate-E
vs
Douglas Laboratories Selenium Plus
Supplement Comparison

  • Vitamin E: Thorne Ultimate-E has 8.3× more
  • The image below shows:
    • Side-by-side charts with label nutrient amounts, per serving
    • Nutrient forms as listed on the label
    • 6 nutrients compared
Bar chart: per-serving label amounts and listed forms for Thorne Ultimate-E vs Douglas Laboratories Selenium Plus.

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Frequently asked questions

Which active ingredients does Thorne Ultimate-E have?

  • Vitamin E appears as d-Alpha Tocopherol from Mixed Tocopherols

Which active ingredients does Douglas Laboratories Selenium Plus have?

  • Vitamin C appears as Ascorbic Acid
  • Vitamin E appears as d-Alpha Tocopherol
  • Selenium appears as Selenium Krebs Complex (Citrate, Fumarate, Malate, Glutarate, Succinate)

Which categories do Thorne Ultimate-E and Douglas Laboratories Selenium Plus belong to?

  • Antioxidant Complex
  • Single Vitamin

What health concerns do Thorne Ultimate-E and Douglas Laboratories Selenium Plus address?

  • Antioxidant Support
  • Heart & Cardiovascular Health
  • Thyroid Support
  • Cellular Health
  • Immune System Support

Which product has a higher amount of Vitamin E per serving?

  • Thorne Ultimate-E has the highest total amount of Vitamin E: 335 mg per serving

How do the serving sizes compare between the two supplements?

  • Serving size:
    • Thorne Ultimate-E: 1 gelcap
    • Douglas Laboratories Selenium Plus: 1 capsule
  • Vitamin E
    • This supplement has 335 mg
    • Recommended Dietary Allowance in men: 15 mg
    • Recommended Dietary Allowance in women: 15 mg
    • Tolerable Upper Intake Level: 1000 mg
  • 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 40.2 mg
    • Recommended Dietary Allowance in men: 15 mg
    • Recommended Dietary Allowance in women: 15 mg
    • Tolerable Upper Intake Level: 1000 mg
  • Selenium
    • This supplement has 200 mcg
    • Recommended Dietary Allowance in men: 55 mcg
    • Recommended Dietary Allowance in women: 55 mcg
    • Tolerable Upper Intake Level: 400 mcg

Last updated: February 10, 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