Thorne Riboflavin 5'-Phosphate
vs
Thorne SynaQuell+
Supplement Comparison

  • Vitamin B2 (Riboflavin): Thorne SynaQuell+ has 2.7× more
  • The image below shows:
    • Side-by-side charts with label nutrient amounts, per serving
    • Nutrient forms as listed on the label
    • 20 nutrients compared
Bar chart: per-serving label amounts and listed forms for Thorne Riboflavin 5'-Phosphate vs Thorne SynaQuell+.

Frequently asked questions

Which active ingredients does Thorne Riboflavin 5'-Phosphate have?

  • Vitamin B2 (Riboflavin)

Which active ingredients does Thorne SynaQuell+ have?

  • Vitamin B2 (Riboflavin) appears as Riboflavin 5-Phosphate Sodium
  • Magnesium appears as TRAACS Magnesium Bisglycinate (Albion)
  • Docosahexaenoic Acid (DHA)
  • Nicotinamide Riboside
  • Betaine Anhydrous
  • Glutathione appears as Reduced Glutathione
  • β-Hydroxy-β-Methylbutyrate (HMB) appears as Magnesium Beta Hydroxybutyrate
  • L-Leucine
  • L-Isoleucine
  • L-Valine
  • Coenzyme Q10 appears as Coenzyme Q10 Standard Form
  • Resveratrol appears as Trans-Resveratrol
  • Turmeric appears as Meriva Curcumin Phytosome

Which categories do Thorne Riboflavin 5'-Phosphate and Thorne SynaQuell+ belong to?

  • Methylation Formula
  • Single Vitamin
  • Amino Acid Formula
  • Fish Oil and Omega-3
  • Sports Formula

What health concerns do Thorne Riboflavin 5'-Phosphate and Thorne SynaQuell+ address?

  • Energy & Metabolism
  • General Health
  • Methylation Support
  • Antioxidant Support
  • Athletic Performance
  • Brain, Focus & Cognitive Function

Which product has a higher amount of Vitamin B2 (Riboflavin) per serving?

  • Thorne SynaQuell+ has the highest total amount of Vitamin B2 (Riboflavin): 100 mg per serving

How do the serving sizes compare between the two supplements?

  • Serving size:
    • Thorne Riboflavin 5'-Phosphate: 1 capsule
    • Thorne SynaQuell+: 1 scoop
  • Vitamin B2 (Riboflavin)
    • This supplement has 36.5 mg
    • Recommended Dietary Allowance in men: 1.3 mg
    • Recommended Dietary Allowance in women: 1.1 mg
    • Tolerable Upper Intake Level: Not established
  • Vitamin B2 (Riboflavin)
    • This supplement has 100 mg
    • Recommended Dietary Allowance in men: 1.3 mg
    • Recommended Dietary Allowance in women: 1.1 mg
    • Tolerable Upper Intake Level: Not established

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