Jarrow Methyl B-12 & Methyl Folate
vs
Metagenics Testralin
Supplement Comparison

  • Vitamin B12 (Cobalamin): Jarrow Methyl B-12 & Methyl Folate has 67× more
  • Vitamin B9 (Folate): Jarrow Methyl B-12 & Methyl Folate has 2.1× more
  • Vitamin B6 (Pyridoxine): Metagenics Testralin has 17× more
  • The image below shows:
    • Side-by-side charts with label nutrient amounts, per serving
    • Nutrient forms as listed on the label
    • 26 nutrients compared
Bar chart: per-serving label amounts and listed forms for Jarrow Methyl B-12 & Methyl Folate vs Metagenics Testralin.

Frequently asked questions

Which active ingredients does Jarrow Methyl B-12 & Methyl Folate have?

  • Vitamin B6 (Pyridoxine) appears as Pyridoxal 5-Phosphate
  • Vitamin B9 (Folate) appears as 6S-5-methyltetrahydrofolate glucosamine salt
  • Vitamin B12 (Cobalamin) appears as Methylcobalamin

Which active ingredients does Metagenics Testralin have?

  • Vitamin D appears as Cholecalciferol (D3)
  • Vitamin B6 (Pyridoxine) appears as Pyridoxine HCl
  • Vitamin B9 (Folate) appears as Calcium-L-5-methyltetrahydrofolate
  • Vitamin B12 (Cobalamin) appears as Methylcobalamin
  • Zinc appears as Zinc Citrate
  • Selenium appears as L-Selenomethionine
  • Lycopene
  • Betaine Hydrochloride appears as Betaine HCl
  • Turmeric appears as Turmeric Root Extract (Curcuma longa) (rhizome) (Standardized to 95% Curcuminoids)
  • Green Tea appears as Decaffeinated Green Tea Extract (Camellia sinensis leaf, standardized to 60% catechins and 40% EGCG)
  • Soybean Extract appears as Soybean Concentrate
  • Total Isoflavones
  • Mixed Plant Sterols Complex
  • Oleanolic Acid appears as Oleanolic Acid from Olive Leaf Extract (Olea europaea)
  • Lignans appears as Lignans as Secoisolariciresinol Diglucosides (SDG) from Flaxseed Extract

Which categories do Jarrow Methyl B-12 & Methyl Folate and Metagenics Testralin belong to?

  • B-Complex Formula
  • Hormone Support Formula

What health concerns do Jarrow Methyl B-12 & Methyl Folate and Metagenics Testralin address?

  • Methylation Support
  • Hormonal Balance
  • Men's Health

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

  • Jarrow Methyl B-12 & Methyl Folate has the highest total amount of Vitamin B12 (Cobalamin): 1000 mcg per serving

Which product has a higher amount of Vitamin B9 (Folate) per serving?

  • Jarrow Methyl B-12 & Methyl Folate has the highest total amount of Vitamin B9 (Folate): 680 mcg DFE per serving

Which product has a higher amount of Vitamin B6 (Pyridoxine) per serving?

  • Metagenics Testralin has the highest total amount of Vitamin B6 (Pyridoxine): 25 mg per serving

How do the serving sizes compare between the two supplements?

  • Serving size:
    • Jarrow Methyl B-12 & Methyl Folate: 1 tablet
    • Metagenics Testralin: 1 tablet
  • Vitamin B6 (Pyridoxine)
    • This supplement has 1.5 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 680 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 1000 mcg
    • Recommended Dietary Allowance in men: 2.4 mcg
    • Recommended Dietary Allowance in women: 2.4 mcg
    • Tolerable Upper Intake Level: Not established
  • Vitamin D
    • This supplement has 375 IU
    • Recommended Dietary Allowance in men: 600 IU
    • Recommended Dietary Allowance in women: 600 IU
    • Tolerable Upper Intake Level: 4000 IU
  • Vitamin B6 (Pyridoxine)
    • This supplement has 25 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 15 mcg
    • Recommended Dietary Allowance in men: 2.4 mcg
    • Recommended Dietary Allowance in women: 2.4 mcg
    • Tolerable Upper Intake Level: Not established
  • Zinc
    • This supplement has 2.5 mg
    • Recommended Dietary Allowance in men: 11 mg
    • Recommended Dietary Allowance in women: 8 mg
    • Tolerable Upper Intake Level: 40 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

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.
  • See an error? Report it through our Contact page.
  • Author: VIOscan Research Team