Metagenics Ultra Potent-C Vitamin C Powder
vs
Metagenics Echinacea Synergy
Supplement Comparison

  • Vitamin C: Metagenics Ultra Potent-C Vitamin C Powder has 11× more
  • Vitamin B3 (Niacin): Metagenics Ultra Potent-C Vitamin C Powder has 12× more
  • The image below shows:
    • Side-by-side charts with label nutrient amounts, per serving
    • Nutrient forms as listed on the label
    • 21 nutrients compared
Bar chart: per-serving label amounts and listed forms for Metagenics Ultra Potent-C Vitamin C Powder vs Metagenics Echinacea Synergy.

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Frequently asked questions

Which active ingredients does Metagenics Ultra Potent-C Vitamin C Powder have?

  • Vitamin C appears as Ascorbic Acid
  • Vitamin B3 (Niacin) appears as Nicotinic Acid
  • Calcium appears as Calcium Carbonate
  • Magnesium appears as Magnesium Oxide
  • Sodium appears as Sodium Chloride
  • L-Lysine appears as L-Lysine Monohydrochloride
  • Citrus Bioflavonoid Complex

Which active ingredients does Metagenics Echinacea Synergy have?

  • Vitamin C
  • Vitamin B3 (Niacin)
  • Ginger Extract appears as Ginger (Zingiber officinale) Rhizome Extract containing gingerols and shogaols
  • Licorice Root (Glycyrrhiza glabra) appears as Licorice (Glycyrrhiza glabra) Root Extract standardized to 25% glycyrrhizic acid
  • Echinacea appears as Echinacea (Echinacea purpurea) Aerial Parts 3:1 Extract standardized to 4% total phenols
  • Perilla (Perilla frutescens) appears as Perilla Seed Extract (Perilla frutescens) containing rosmarinic acid and luteolin

Which categories do Metagenics Ultra Potent-C Vitamin C Powder and Metagenics Echinacea Synergy belong to?

  • Single Vitamin
  • Herbal Extract

What health concerns do Metagenics Ultra Potent-C Vitamin C Powder and Metagenics Echinacea Synergy address?

  • Immune System Support
  • Respiratory Health

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

  • Metagenics Ultra Potent-C Vitamin C Powder has the highest total amount of Vitamin C: 1088 mg per serving

Which product has a higher amount of Vitamin B3 (Niacin) per serving?

  • Metagenics Ultra Potent-C Vitamin C Powder has the highest total amount of Vitamin B3 (Niacin): 84 mg per serving

How do the serving sizes compare between the two supplements?

  • Serving size:
    • Metagenics Ultra Potent-C Vitamin C Powder: 0.3 teaspoons
    • Metagenics Echinacea Synergy: 1 tablet
  • Vitamin C
    • This supplement has 1088 mg
    • Recommended Dietary Allowance in men: 90 mg
    • Recommended Dietary Allowance in women: 75 mg
    • Tolerable Upper Intake Level: 2000 mg
  • Vitamin B3 (Niacin)
    • This supplement has 84 mg
    • Recommended Dietary Allowance in men: 16 mg
    • Recommended Dietary Allowance in women: 14 mg
    • Tolerable Upper Intake Level: 35 mg
  • Calcium
    • This supplement has 50 mg
    • Recommended Dietary Allowance in men: 1000 mg
    • Recommended Dietary Allowance in women: 1000 mg
    • Tolerable Upper Intake Level: 2500 mg
  • Sodium
    • This supplement has 15 mg
    • Adequate Intake in men: 1500 mg
    • Adequate Intake in women: 1500 mg
    • Tolerable Upper Intake Level: Not established
  • 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 B3 (Niacin)
    • This supplement has 7 mg
    • Recommended Dietary Allowance in men: 16 mg
    • Recommended Dietary Allowance in women: 14 mg
    • Tolerable Upper Intake Level: 35 mg

Last updated: February 9, 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.
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  • Author: VIOscan Research Team