practitioner supplements uk europe

Riboflavin 5' Phosphate, 60 Capsules - Thorne


As with many B vitamins, riboflavin must be converted to its active form – riboflavin 5′-phospate (R5P) – in order for it to be utilised by the body.

Riboflavin, also known as vitamin B2, plays a key role in the activation and conversion of other B vitamins. For instance, it is necessary for activation of vitamin B6, conversion of tryptophan to niacin, and conversion of folate to its various active forms. Riboflavin also plays a crucial role in fat and glucose metabolism, red blood cell synthesis, and the production and regulation of certain hormones.


Allergen Information


Hypromellose (derived from cellulose) capsule, microcrystalline, cellulose, silicon dioxide, calcium lactate.


Take 1 capsule one to three times daily or as recommended by your healthcare practitioner.

Storage Instructions

Store in a cool, dark place out of reach of children


Food supplements should not be used as a substitute for a varied diet. If you are taking prescribed medication, have any medical condition or are pregnant or breast-feeding please consult your healthcare practitioner before taking food supplements.

Supplement Facts
Serving Size: One Capsule
One Capsule Contains: % DV
Riboflavin (as Riboflavin 5′ – Phosphate Sodium) 36.5 mg 2,808%
Daily Value (DV)