THORNE RESEARCH
Riboflavin 5'-Phosphate
Thorne's Riboflavin 5'-Phosphate, which is not derived from yeast, provides supplementation with a bioactive, tissue ready form of riboflavin that can be optimally utilized in the body.*
Riboflavin 5'-Phosphate is a more readily usable form of B2 than riboflavin.* It is an important cofactor for the activation and conversion of other B vitamins, including niacin and vitamin B6.*
$28.00
In Stock
Subscribe & Save
We provide best customer experience
Making a difference in personalized wellness since 1999
Authentic Products
Sourced from trusted manufacturers and distributors.
Factory-Sealed Only
Brand-new items; never resold or opened.
GMP Compliance
Products meet federal current Good Manufacturing Practices (cGMPs)
Practitioner-Selected
Chosen by our care team to align with best-practice protocols
