Swanson Vitamin B12 Cyanocobalamin
vs
Metagenics MetaRelax
Supplement Comparison

  • Vitamin B12 (Cobalamin): Swanson Vitamin B12 Cyanocobalamin has 167× 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 Swanson Vitamin B12 Cyanocobalamin vs Metagenics MetaRelax.

Frequently asked questions

Which active ingredients does Swanson Vitamin B12 Cyanocobalamin have?

  • Vitamin B12 (Cobalamin) appears as Cyanocobalamin

Which active ingredients does Metagenics MetaRelax have?

  • Vitamin B6 (Pyridoxine) appears as Pyridoxine HCl
  • Vitamin B9 (Folate) appears as Folic acid and calcium L-5-methyltetrahydrofolate
  • Vitamin B12 (Cobalamin) appears as Methylcobalamin
  • Magnesium appears as Magnesium Bisglycinate
  • Taurine

Which categories do Swanson Vitamin B12 Cyanocobalamin and Metagenics MetaRelax belong to?

  • Single Vitamin
  • Multivitamin

What health concerns do Swanson Vitamin B12 Cyanocobalamin and Metagenics MetaRelax address?

  • Energy & Metabolism
  • Brain, Focus & Cognitive Function
  • General Health
  • Stress Management

Which product has a higher amount of Vitamin B12 (Cobalamin) per serving?

  • Swanson Vitamin B12 Cyanocobalamin has the highest total amount of Vitamin B12 (Cobalamin): 500 mcg per serving

How do the serving sizes compare between the two supplements?

  • Serving size:
    • Swanson Vitamin B12 Cyanocobalamin: 1 capsule
    • Metagenics MetaRelax: 3.3 g
  • Vitamin B12 (Cobalamin)
    • This supplement has 500 mcg
    • Recommended Dietary Allowance in men: 2.4 mcg
    • Recommended Dietary Allowance in women: 2.4 mcg
    • Tolerable Upper Intake Level: Not established
  • Vitamin B6 (Pyridoxine)
    • This supplement has 2.8 mg
    • Recommended Dietary Allowance in men: 1.3 mg
    • Recommended Dietary Allowance in women: 1.3 mg
    • Tolerable Upper Intake Level: 100 mg
  • Vitamin B9 (Folate)
    • This supplement has 330 mcg DFE
    • Recommended Dietary Allowance in men: 400 mcg DFE
    • Recommended Dietary Allowance in women: 400 mcg DFE
    • Tolerable Upper Intake Level: 1000 mcg DFE
  • Vitamin B12 (Cobalamin)
    • This supplement has 3 mcg
    • Recommended Dietary Allowance in men: 2.4 mcg
    • Recommended Dietary Allowance in women: 2.4 mcg
    • Tolerable Upper Intake Level: Not established

Last updated: January 2, 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.
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  • Author: VIOscan Research Team