{"data":{"id":"us/21-cfr-333.310","jurisdiction":"us","citation":"21 CFR 333.310","heading":"Acne active ingredients.","body":"The active ingredient of the product consists of any of the following:\n(a) Benzoyl peroxide, 2.5 to 10 percent.\n(b) Resorcinol, 2 percent, when combined with sulfur in accordance with § 333.320(a).\n(c) Resorcinol monoacetate, 3 percent, when combined with sulfur in accordance with § 333.320(b).\n(d) Salicylic acid, 0.5 to 2 percent.\n(e) Sulfur, 3 to 10 percent.\n(f) Sulfur, 3 to 8 percent, when combined with resorcinol or resorcinol monoacetate in accordance with § 333.320.","path":["Title 21—Food and Drugs","CHAPTER I—FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES","SUBCHAPTER D—DRUGS FOR HUMAN USE","PART 333—TOPICAL ANTIMICROBIAL DRUG PRODUCTS FOR OVER-THE-COUNTER HUMAN USE","Subpart D—Topical Acne Drug Products"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-21.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:24:47Z","sha256":"94b015b9ec9e6ef092c8d9fca7f465ae74eaa8ff4f944e2543c96ba5ab8fac1b","source_id":"us-cfr","stale":true,"prev":"us/21-cfr-333.303","next":"us/21-cfr-333.320"},"notice":"GroundRules: Original legal text. Not legal advice."}