NOW Foods Vitamin E
vs
Douglas Laboratories E-400
Supplement Comparison

  • Vitamin E: NOW Foods Vitamin E has 18% more
  • The image below shows:
    • Side-by-side charts with label nutrient amounts, per serving
    • Nutrient forms as listed on the label
    • 5 nutrients compared
Bar chart: per-serving label amounts and listed forms for NOW Foods Vitamin E vs Douglas Laboratories E-400.

Try the VIOscan dashboard demo for free

Build comparison charts in seconds – no signup or card needed

This is a free preview of the $9.99/month premium dashboard

Use the interactive demo with multivitamins samples

Try Free Demo

Frequently asked questions

Which active ingredients does NOW Foods Vitamin E have?

  • Vitamin E appears as d-Alpha Tocopherol
  • Vitamin E appears as Mixed Tocopherols
  • Selenium appears as Selenium Yeast

Which active ingredients does Douglas Laboratories E-400 have?

  • Vitamin E appears as d-Alpha Tocopheryl Acetate

Which categories do NOW Foods Vitamin E and Douglas Laboratories E-400 belong to?

  • Single Vitamin

What health concerns do NOW Foods Vitamin E and Douglas Laboratories E-400 address?

  • Antioxidant Support
  • Heart & Cardiovascular Health

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

  • Both products list the same total amount of Vitamin E per serving

How do the serving sizes compare between the two supplements?

  • Serving size:
    • NOW Foods Vitamin E: 1 softgel
    • Douglas Laboratories E-400: 1 softgel
  • Vitamin E
    • This supplement has 316 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 100 mcg
    • Recommended Dietary Allowance in men: 55 mcg
    • Recommended Dietary Allowance in women: 55 mcg
    • Tolerable Upper Intake Level: 400 mcg
  • Vitamin E
    • This supplement has 268 mg
    • Recommended Dietary Allowance in men: 15 mg
    • Recommended Dietary Allowance in women: 15 mg
    • Tolerable Upper Intake Level: 1000 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