# Vitamin B2, Whole Blood

> This test measures the amount of vitamin B2, also known as riboflavin, in your blood. Your body needs this nutrient to convert food into energy and keep your skin and blood cells healthy. This test helps determine if you have a vitamin deficiency that could explain symptoms like fatigue, mouth sores, or skin issues. While it confirms whether your levels are low, it does not identify the specific underlying cause of the deficiency by itself.

- Labcorp code: 123220
- Category: [Nutrients](https://app.picardo.health/labs/tests/nutrients.md)
- Price: shown at checkout, before payment.
- Blood draw: free at a Labcorp location, or $75.00 at home.
- Order link: https://app.picardo.health/labs/order?tests=123220&ref=assistant

## About ordering

A licensed physician reviews every order before any test is run, and results arrive in the person's Picardo account. Ordering is open to adults 18 and over in the US, except New York, New Jersey, Rhode Island, Pennsylvania, Maryland, Massachusetts, Hawaii and Maine. General health information, not medical advice.