Home › CFR › Title 21 › Part 35221 CFR Part 352 — Sunscreen Drug Products for Over-the-Counter Human Use [Stayed Indefinitely]Subpart A — General Provisions§ 352.1— Scope.§ 352.3— Definitions.Subpart B — Active Ingredients§ 352.10— Sunscreen active ingredients.§ 352.20— Permitted combinations of active ingredients.Subpart C — Labeling§ 352.50— Principal display panel of all sunscreen drug products.§ 352.52— Labeling of sunscreen drug products.§ 352.60— Labeling of permitted combinations of active ingredients.Subpart D — Testing Procedures§ 352.70— Standard sunscreen.§ 352.71— Light source (solar simulator).§ 352.72— General testing procedures.§ 352.73— Determination of SPF value.§ 352.76— Determination if a product is water resistant or very water resistant.§ 352.77— Test modifications.