Core Viewpoint - The incident involving Shanghai Soap Factory's "Shanghai Medicine Soap" allegedly containing Sudan Red No. 4 has sparked significant public concern and regulatory investigation [1][2]. Group 1: Company Response - The company claims that all products meet national standards and will issue a formal announcement soon [1][2]. - The company has not confirmed whether the controversial ingredient has been consistently added, stating that an investigation is ongoing [1][2]. - The company asserts that the use of CAS numbers for ingredient labeling is compliant with industry standards, and the amounts of added colorants are minimal and not banned in cleansing products [4][5]. Group 2: Regulatory Investigation - The Shanghai Yangpu District Market Supervision Administration is currently investigating the claims and has not yet confirmed the presence of carcinogenic substances in the products [2][3]. - If the investigation finds issues with the products, the administration will require a complete recall [2]. Group 3: Consumer Concerns - Consumers have expressed worries about product safety, particularly regarding the use of Sudan Red No. 4, which is banned in cosmetics [2][3]. - Some consumers argue that the labeling of ingredients using CAS numbers instead of common names is misleading [3][4]. Group 4: Product Composition - Multiple products from the company also feature ingredient lists with letter-number codes, which correspond to various colorants and additives [4]. - The company maintains that these additives are safe and commonly used in the industry, with no current data indicating safety issues [4][5].