THORNE Riboflavin 5'-Phosphate – Bioactive Vitamin B2, 60 Capsules

Who Should Consider This Supplement?

If you're looking to support your energy levels and methylation pathways, THORNE's bioactive vitamin B2 might be just what you need. Individuals with limited dietary intake of riboflavin-rich foods—such as dairy, eggs, lean meats, and green vegetables—may benefit from supplementation. Because riboflavin is water-soluble and not stored in the body, regular intake is important for maintaining optimal levels. This supplement is also ideal for those seeking to support their overall metabolic health.

How to Choose the Right Riboflavin Supplement

Riboflavin supplements come in two primary forms: standard riboflavin and riboflavin 5'-phosphate (the active form). The active form in this THORNE product does not require conversion by the body, making it especially beneficial for individuals with absorption issues or genetic variations that impair nutrient metabolism. When selecting a supplement, look for third-party testing, clean ingredient labels, and a reputable brand—THORNE is trusted by over 100 professional sports teams and recommended by health care practitioners.

What Is Riboflavin 5'-Phosphate?

Riboflavin, also known as vitamin B2, is an essential water-soluble vitamin that plays a key role in energy production and cellular function. THORNE's Riboflavin 5'-Phosphate provides the bioactive, tissue-ready form of vitamin B2, which is more readily utilised by the body compared to standard riboflavin. This advanced form supports methylation, a crucial biochemical process involved in DNA synthesis, cleansing, and neurotransmitter balance.*

Benefits of Riboflavin 5'-Phosphate

Riboflavin 5'-Phosphate contributes to normal energy-yielding metabolism, helping convert food into usable energy. It also aids in the formation of other B vitamins, including niacin and active vitamin B6, ensuring your body's coenzyme systems function optimally.* Additionally, this supplement supports healthy methylation, which is vital for cardiovascular health, mood regulation, and overall cellular health.*

THORNE's Riboflavin 5'-Phosphate is third-party certified for purity and potency. It is free from gluten, dairy, soy, and other major allergens, making it suitable for individuals with dietary sensitivities.

Recommended Dosage and Safety

The typical dosage for riboflavin 5'-phosphate ranges from 50 to 400 mg per day, depending on individual needs. THORNE's product provides a well-tolerated dose that can be taken with or without food. Riboflavin is generally safe, with excess amounts excreted in urine, often turning it a harmless bright yellow colour. As with any supplement, consult your health care provider before beginning a new regimen, especially if you are pregnant, nursing, or taking medications. Always read the labelled and follow the directions for use.

Frequently Asked Questions

What is the difference between riboflavin and riboflavin 5'-phosphate? Riboflavin 5'-phosphate is the active coenzyme form, which the body can use directly without conversion. Standard riboflavin must be converted in the body, which can be less efficient for some individuals.

Can riboflavin help with energy? Yes, riboflavin plays a key role in energy metabolism, helping to convert carbohydrates, fats, and proteins into ATP, the body's primary energy currency.*

Is this supplement suitable for vegans? THORNE Riboflavin 5'-Phosphate is derived from non-animal sources and is free from common allergens, making it suitable for most dietary preferences. Check the labelled for specific details.

This product is not intended to diagnose, treat, or prevent any disease.