Thorne Pro-Resolving Mediators
vs
21st Century Fish Oil
Supplement Comparison

  • EPA + DHA (combined EPA+DHA content - individual amounts of EPA+DHA not specified): Thorne Pro-Resolving Mediators has 37% more
  • The image below shows:
    • Side-by-side charts with label nutrient amounts, per serving
    • Nutrient forms as listed on the label
    • 9 nutrients compared
Bar chart: per-serving label amounts and listed forms for Thorne Pro-Resolving Mediators vs 21st Century Fish Oil.

Frequently asked questions

Which active ingredients does Thorne Pro-Resolving Mediators have?

  • Eicosapentaenoic Acid (EPA) appears as Unspecified
  • Docosahexaenoic Acid (DHA) appears as Unspecified
  • 18-HEPE (18-hydroxyeicosapentaenoic acid)
  • 17-HDHA (17-hydroxydocosahexaenoic acid)
  • 14-HDHA (14-hydroxydocosahexaenoic acid)
  • Marine Lipid Concentrate

Which active ingredients does 21st Century Fish Oil have?

  • EPA + DHA (combined EPA+DHA content - individual amounts of EPA+DHA not specified)

Which categories do Thorne Pro-Resolving Mediators and 21st Century Fish Oil belong to?

  • Antioxidant Complex
  • Fish Oil and Omega-3

What health concerns do Thorne Pro-Resolving Mediators and 21st Century Fish Oil address?

  • Athletic Performance
  • Anti-Inflammatory Support
  • Brain, Focus & Cognitive Function
  • Healthy Aging & Longevity
  • Heart & Cardiovascular Health
  • Immune System Support
  • Recovery & Repair
  • Eye Health
  • Joint & Bone Health

Which product has a higher amount of EPA + DHA (combined EPA+DHA content - individual amounts of EPA+DHA not specified) per serving?

  • Thorne Pro-Resolving Mediators has the highest total amount of EPA + DHA (combined EPA+DHA content - individual amounts of EPA+DHA not specified): 410 mg per serving

How do the serving sizes compare between the two supplements?

  • Serving size:
    • Thorne Pro-Resolving Mediators: 1 gelcap
    • 21st Century Fish Oil: 1 softgel

Last updated: January 3, 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