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U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 28, 2025
All Titles
Title 21
Chapter I
Part 333
Subpart D - Subpart D—Topical Acne Drug Products
§ 333.301 - Scope.
§ 333.303 - Definitions.
§ 333.310 - Acne active ingredients.
§ 333.320 - Permitted combinations of active ingredients.
§ 333.350 - Labeling of acne drug products.
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