21 CFR 74.2321 - D&C Red No. 21.
(a) Identity and specifications. The color additive D&C Red No. 21 shall conform in identity and specifications to the requirements of § 74.1321(a)(1) and (b).
(b) Uses and restrictions. The color additive D&C Red No. 21 may be safely used for coloring cosmetics generally in amounts consistent with current good manufacturing practice.
(c) Labeling requirements. The label of the color additive shall conform to the requirements of § 70.25 of this chapter.
(d) Certification. All batches of D&C Red No. 21 shall be certified in accordance with regulations in part 80 of this chapter.