21st Century B-Complex Plus Vitamin C
vs
Metagenics Lipo-Gen
Supplement Comparison

  • Vitamin C: 21st Century B-Complex Plus Vitamin C has 3.0× more
  • Vitamin B6 (Pyridoxine): Metagenics Lipo-Gen has 2.0× 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 21st Century B-Complex Plus Vitamin C vs Metagenics Lipo-Gen.

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Frequently asked questions

Which active ingredients does 21st Century B-Complex Plus Vitamin C have?

  • Vitamin C appears as Ascorbic Acid
  • Vitamin B1 (Thiamin) appears as Thiamin Mononitrate
  • Vitamin B2 (Riboflavin) appears as Riboflavin
  • Vitamin B3 (Niacin) appears as Niacinamide
  • Vitamin B6 (Pyridoxine) appears as Pyridoxine HCl
  • Vitamin B5 (Pantothenic Acid) appears as D-Calcium Pantothenate
  • Calcium appears as Calcium Carbonate and Dicalcium Phosphate

Which active ingredients does Metagenics Lipo-Gen have?

  • Vitamin C appears as Ascorbic Acid
  • Vitamin B6 (Pyridoxine) appears as Pyridoxine HCl
  • Vitamin B9 (Folate) appears as Calcium-L-5-methyltetrahydrofolate
  • Vitamin B12 (Cobalamin) appears as Methylcobalamin
  • Choline appears as Choline Bitartrate
  • Magnesium appears as Magnesium Oxide
  • Inositol
  • Betaine Hydrochloride
  • Taurine
  • Blend appears as Proprietary Blend Artichoke Cynara scolymus Leaf Extract Chen Pi Citrus reticulata 5:1 Peel Extract
  • L-Methionine

Which categories do 21st Century B-Complex Plus Vitamin C and Metagenics Lipo-Gen belong to?

  • B-Complex Formula
  • Digestive Support

What health concerns do 21st Century B-Complex Plus Vitamin C and Metagenics Lipo-Gen address?

  • Antioxidant Support
  • Energy & Metabolism
  • General Health
  • Neurological Support
  • Liver & Detox Support

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

  • 21st Century B-Complex Plus Vitamin C has the highest total amount of Vitamin C: 300 mg per serving

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

  • Metagenics Lipo-Gen has the highest total amount of Vitamin B6 (Pyridoxine): 10 mg per serving

How do the serving sizes compare between the two supplements?

  • Serving size:
    • 21st Century B-Complex Plus Vitamin C: 1 tablet
    • Metagenics Lipo-Gen: 2 tablets
  • Vitamin C
    • This supplement has 300 mg
    • Recommended Dietary Allowance in men: 90 mg
    • Recommended Dietary Allowance in women: 75 mg
    • Tolerable Upper Intake Level: 2000 mg
  • Vitamin B1 (Thiamin)
    • This supplement has 15 mg
    • Recommended Dietary Allowance in men: 1.2 mg
    • Recommended Dietary Allowance in women: 1.1 mg
    • Tolerable Upper Intake Level: Not established
  • Vitamin B2 (Riboflavin)
    • This supplement has 14.3 mg
    • Recommended Dietary Allowance in men: 1.3 mg
    • Recommended Dietary Allowance in women: 1.1 mg
    • Tolerable Upper Intake Level: Not established
  • Vitamin B3 (Niacin)
    • This supplement has 50 mg
    • Recommended Dietary Allowance in men: 16 mg
    • Recommended Dietary Allowance in women: 14 mg
    • Tolerable Upper Intake Level: 35 mg
  • Vitamin B6 (Pyridoxine)
    • This supplement has 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 B5 (Pantothenic Acid)
    • This supplement has 10 mg
    • Adequate Intake in men: 5 mg
    • Adequate Intake in women: 5 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 B6 (Pyridoxine)
    • This supplement has 10 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 165 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 10 mcg
    • Recommended Dietary Allowance in men: 2.4 mcg
    • Recommended Dietary Allowance in women: 2.4 mcg
    • Tolerable Upper Intake Level: Not established
  • Choline
    • This supplement has 300 mg
    • Adequate Intake in men: 550 mg
    • Adequate Intake in women: 425 mg
    • Tolerable Upper Intake Level: 3500 mg

Last updated: February 5, 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