Red dye refers to a variety of coloring agents used to impart a red hue to products such as food, textiles, and cosmetics. Common sources of red dye include natural substances like cochineal, derived from insects, and synthetic options like Red 40, a widely used artificial dye. These dyes are regulated for safety and are often labeled on product packaging. In the food industry, red dye is frequently used in candies, beverages, and processed foods to enhance visual appeal. While many people consume products containing red dye without issues, some individuals may experience allergic reactions or sensitivities, prompting ongoing discussions about the safety and labeling of these additives.