21 CFR § 74.2304 - FD&C Red No. 4.

(a) Identity and specifications. The color additive FD&C Red No. 4 shall conform in identity and specifications to the requirements of § 74.1304(a)(1) and (b).

(b) Uses and restrictions. FD&C Red No. 4 may be safely used for coloring externally applied cosmetics in amounts consistent with good manufacturing practice.

(c) Labeling. The label of the color additive shall conform to the requirements of § 70.25 of this chapter.

(d) Certification. All batches of FD&C Red No. 4 shall be certified in accordance with regulations in part 80 of this chapter.