Includes Fd&c: Red #40

FD&C Red #40, also known as Allura Red AC, is a synthetic red food dye. It is manufactured from petroleum.

This additive is used to give foods and beverages a bright red color. It is commonly found in candies, soft drinks, desserts, and processed snacks to enhance their visual appeal.

FD&C Red #40 is an FDA-approved color additive for use in foods, drugs, and cosmetics. JECFA has evaluated this additive. Some studies have suggested a possible link between synthetic food dyes, including Red #40, and hyperactivity in some sensitive children, though evidence is mixed and not conclusive according to reviews. In April 2025, the FDA announced a plan to phase out petroleum-based synthetic dyes, including Red #40.