CFR /  Title 21  /  Part 82  /  Sec. 82.304 FD&C; Red No. 4.

The color additive FD&C; Red No. 4 shall conform in identity and specifications to the requirements of Sec. 74.1304(a)(1) and (b) of this chapter. FD&C; Red No. 4 is restricted to use in externally applied drugs and cosmetics.