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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 347
Subpart B - Subpart B—Active Ingredients
§ 347.10 - Skin protectant active ingredients.
§ 347.12 - Astringent active ingredients.
§ 347.20 - Permitted combinations of active ingredients.
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