Red 40 and Red 40 Lake are both food coloring agents that are used to provide a red or pinkish tint to food products. However, there is a difference between the two: Red 40 is a water-soluble food dye that is made from petroleum-based chemicals. It is commonly used in drinks, candies, and other food products. Red 40 Lake, on the other hand, is an insoluble form of Red 40 that is made by mixing Red 40 with aluminum hydroxide. It is commonly used in baked goods, confectionery, and other food products that require a longer shelf life. Both Red 40 and Red 40 Lake are commonly used food coloring agents, but Red 40 Lake is often preferred over Red 40 due to its stability and longer shelf life. However, both have been linked to various health concerns and should be consumed in moderation.