Thorne Research

Riboflavin 5′-Phosphate

$32.00

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The Promise

Product Identity & Key Specs Active, tissue‑ready Riboflavin (R5P) in a single‑ingredient capsule

Thorne Riboflavin 5'-Phosphate supplies the coenzyme form of vitamin B2 in a hypo‑cellulose capsule.

Identity

Riboflavin 5'-Phosphate (R5P) as Riboflavin 5'-Phosphate Sodium.

Principal ingredient & amount

One capsule contains 36.5 mg Riboflavin (as R5P).

Formulation & excipients

Vegetarian hypromellose (cellulose) capsule with microcrystalline cellulose, calcium laurate, silicon dioxide.

Package & servings

60 capsules per container; Serving size: one capsule.

Why It Works

Distinct Formulation Facts Active coenzyme form, defined dose, and capsule delivery

R5P is provided as the ready-to-use coenzyme form at a labeled amount that exceeds standard DV benchmarks.

01

Active coenzyme form

Provided as Riboflavin 5'-Phosphate — the tissue‑ready, enzymatically active form of vitamin B2.

02

Defined high dose

36.5 mg per capsule equals 2,808% of the listed Daily Value.

03

Role in B‑vitamin metabolism

R5P participates in the metabolic conversion of other B vitamins (e.g., vitamin B6 and folate) to their active forms.

04

Tissue‑related functions

R5P is involved in cellular energy pathways and in processes related to red blood cell formation, skin, eye, and connective tissue maintenance.

Reviews

Customer Reviews

Your Journey

How to Use & Safety Clear directions, format, and cautions from the product label

Follow labeled dosing and consider stated warnings and practitioner consultation as needed.

Directions

Suggested Use

Take 1 capsule one to three times daily or as recommended by your health‑care practitioner.

Format & serving

Capsule format

Vegetarian hypromellose capsule; one‑capsule serving; 60 servings per container.

Allergy & pregnancy

Warnings

Contraindicated with a history of hypersensitivity to any ingredient. If pregnant, consult your health‑care practitioner before using.

Interactions & practitioner note

Consult Before Use

No known adverse interactions or contraindications reported at publication date; consult your practitioner for personalized advice.

Product education

Riboflavin 5′-Phosphate: An Active B2 for Cellular Energy and Metabolism

Thorne’s Riboflavin 5′-Phosphate provides a high-quality, tissue-ready form of vitamin B2. As an essential B vitamin, riboflavin is a crucial cofactor for the enzymes involved in cellular energy production and the metabolism of fats and glucose. Unlike standard riboflavin, which the body must first convert, this active R5P form is ready for immediate use. This makes it a superior choice for individuals seeking to support their energy levels, neurotransmitter production, and red blood cell formation.*

How It Works: The Power of an Active B Vitamin

Riboflavin 5′-Phosphate (R5P) is the active coenzyme form of vitamin B2. It plays a central role in the body’s energy-producing pathways.

Fueling Cellular Energy (ATP) Production
R5P is a key component of the Krebs cycle, the body’s primary process for converting food into ATP, or cellular energy. A sufficient supply of R5P is therefore essential for maintaining healthy energy levels and combating fatigue. It also plays a vital role in the metabolism of other B vitamins, including the conversion of vitamin B6 and folate into their active forms.

Supporting Healthy Tissues and Red Blood Cells
Beyond energy, riboflavin is important for maintaining healthy connective tissues and supporting the normal function of the skin and eyes. It is also required for the production of healthy red blood cells, which are responsible for transporting oxygen throughout the body. Because of its crucial and wide-ranging roles, a deficiency can manifest in a variety of ways, from skin disorders to low energy.*

  • Provides the active, tissue-ready form of Vitamin B2 (R5P)
  • Supports cellular energy production and a healthy metabolism*
  • Essential for the healthy formation of red blood cells
  • Promotes healthy skin, eye, and connective tissue function*
  • Plays a key role in the metabolism of other B vitamins

Supplement record

Review serving details and ingredients for this product.

Supplement Facts:
Suggested Use: Take 1 capsule one to three times daily or as recommended by your health-care practitioner.
Serving Size: One Capsule
Servings Per Container: 60
Ingredient Amount %DV
Riboflavin (as Riboflavin 5'-Phosphate Sodium) 36.5 mg 2,808%
Other ingredients: Hypromellose (derived from cellulose) capsule, Microcrystalline Cellulose, Calcium Laurate, Silicon Dioxide.
*Daily Value (DV) not established.
ALLERGY WARNING
This product is contraindicated in an individual with a history of hypersensitivity to any of its ingredients.
PREGNANCY
If pregnant, consult your health-care practitioner before using this product.
INTERACTIONS
There are no known adverse interactions or contraindications at publication date.