Natural Factors Theracurmin® Double Strength
vs
Douglas Laboratories Optimized Curcumin with Neurophenol
Supplement Comparison

  • Turmeric: Douglas Laboratories Optimized Curcumin with Neurophenol has 6.7× more
  • The image below shows:
    • Side-by-side charts with label nutrient amounts, per serving
    • Nutrient forms as listed on the label
    • 4 nutrients compared
Bar chart: per-serving label amounts and listed forms for Natural Factors Theracurmin® Double Strength vs Douglas Laboratories Optimized Curcumin with Neurophenol.

Frequently asked questions

Which active ingredients does Natural Factors Theracurmin® Double Strength have?

  • Turmeric appears as Theracurmin curcumin extract from turmeric (Curcuma longa) (root)

Which active ingredients does Douglas Laboratories Optimized Curcumin with Neurophenol have?

  • Turmeric appears as Longvida Optimized Curcumin Extract
  • Blend appears as Neurophenol Blend (grape extract Vitis vinifera wild blueberry extract Vaccinium angustifolium)

Which categories do Natural Factors Theracurmin® Double Strength and Douglas Laboratories Optimized Curcumin with Neurophenol belong to?

  • Herbal Extract
  • Antioxidant Complex

What health concerns do Natural Factors Theracurmin® Double Strength and Douglas Laboratories Optimized Curcumin with Neurophenol address?

  • Anti-Inflammatory Support
  • General Health
  • Joint & Bone Health
  • Antioxidant Support
  • Brain, Focus & Cognitive Function

Which product has a higher amount of Turmeric per serving?

  • Douglas Laboratories Optimized Curcumin with Neurophenol has the highest total amount of Turmeric: 400 mg per serving

How do the serving sizes compare between the two supplements?

  • Serving size:
    • Natural Factors Theracurmin® Double Strength: 1 capsule
    • Douglas Laboratories Optimized Curcumin with Neurophenol: 2 capsules

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