FD&C Blue 1 Lake

FD&C Blue 1 Lake is a dual-listed colorant — approved under both FDA food additive and cosmetic colorant regulations — making it one of the few blue pigments formulators can specify across personal care, nail, and certain food-contact or food-adjacent product categories without switching colorant systems. As a lake form of Brilliant Blue FCF (CI 42090), it is insoluble in water and most cosmetic solvents, which eliminates the dye migration issues that affect soluble FD&C Blue 1 in wax, oil, and pressed powder matrices.