Typical dose

10-100 mg daily

Oral Oral safety: harmless

About this supplement

Vitamin B2, also known as riboflavin 5-phosphate, is a water-soluble vitamin that plays a crucial role in energy production and the metabolism of fats, drugs, and steroids. It is essential for the maintenance of healthy skin, eyes, and nerve functions. Riboflavin 5-phosphate is the phosphorylated form of riboflavin and serves as a coenzyme in various biochemical reactions, particularly in the conversion of carbohydrates into energy.

How much to take

Typical amount
10-100 mg daily
Suggested range
10-100 mg

Potential benefits

Benefits linked to this supplement form:

Things to watch for

Possible side effects linked to this form:

Health goals

Needs and goals this form may help with:

Other forms of Vitamin B2

Compare absorption and active amounts with sibling forms:

Technical details â–¼

Chemical ID (CAS)

83-88-5

Physical properties

Riboflavin 5-phosphate is a yellow-green crystalline powder that is soluble in water and slightly soluble in alcohol. It has a melting point of 280 °C.

How it’s made

Riboflavin 5-phosphate is produced through the phosphorylation of riboflavin, which can be derived from yeast or synthesized chemically.