Your question was: Is the coloring in Biofreeze harmful?
Our experts said: The color additives used in Biofreeze are approved by the USDA for general use in cosmetics and over the counter medications. It is also used in many of your favorite foods that you eat every day. The amount of coloring in an entire tube of Biofreeze is less than the amount of coloring found on one single M&M*.
*M&M's is the registered trademark of Mars, Inc.