Home › CFR › Title 21 › Part 34721 CFR Part 347 — Skin Protectant Drug Products for Over-the-Counter Human UseSubpart A — General Provisions§ 347.1— Scope.§ 347.3— Definitions.Subpart B — Active Ingredients§ 347.10— Skin protectant active ingredients.§ 347.12— Astringent active ingredients.§ 347.20— Permitted combinations of active ingredients.Subpart C — Labeling§ 347.50— Labeling of skin protectant drug products.§ 347.52— Labeling of astringent drug products.§ 347.60— Labeling of permitted combinations of active ingredients.