Australia’s Therapeutic Goods Administration (TGA) has issued a warning regarding the ongoing illegal promotion and supply of unapproved peptide products marketed for weight loss, anti-ageing, muscle growth, performance enhancement, and cosmetic purposes. The TGA highlighted that many peptide products being advertised online have not been assessed for safety, quality, or efficacy and may pose significant health risks to consumers. Products that are not approved by the TGA cannot be legally advertised, imported, manufactured, supplied, or exported for therapeutic use in Australia. Despite previous regulatory warnings, the TGA continues to identify unlawful marketing activities involving peptide products, particularly through online platforms, social media, and e-commerce channels. Businesses and individuals involved in illegal activities may face regulatory enforcement actions, including: Warning letters Infringement notices Product seizure and forfeiture Civil penalties Criminal prosecution in serious cases The TGA is also collaborating with social media and e-commerce platforms to identify and remove unlawful advertisements and ensure compliance with Australian therapeutic goods regulations. Consumers are advised to exercise caution when purchasing peptide products online and verify that therapeutic products are authorised for supply in Australia.