Riboflavin is Vitamin B2, an essential water soluble vitamin found in meat, dairy, nuts, grains and vegetables. Riboflavin is required for the proper development of the skin, lining of the digestive tract, blood cells, and brain function. It is usde to prevent riboflavin deficiency, for migraine, and for high levels of homocysteine in the blood, and also used for acne, muscle cramps.

• Appearance: Yellow to orange powder
  
• Solubility: Very slightly soluble in water, practically insoluble in ethanol (96 per cent). 
  
• Stability: Stable, but light-sensitive.