E165 is a food additive known as "lithol rubine BK," primarily used as a colorant in various food products. It is derived from coal tar and is often found in items like candies, beverages, and processed foods to enhance their visual appeal. This additive is classified as a synthetic dye and is regulated by food safety authorities in many countries. While it is generally recognized as safe when used within specified limits, some individuals may have sensitivities or allergies to artificial colorants, including E165.