The negative effects of human activity – including pollution, climate change, natural resource depletion and biodiversity loss – not only cause environmental degradation, but also have negative effects on human health. Chemicals in products are on the EU policy agenda, particularly as the EU’s Circular Economy strategy seeks to ensure easier reintroduction of secondary raw materials into the economy without spreading problematic substances . ECOS calls for more stringent application of the existing chemicals legislation, and pushes for long-awaited nanomaterial-specific legislation. Our goal is to eliminate or minimise the use of problematic substances in (consumer) products in order to protect human health and the environment. We promote the development of ambitious requirements on problematic substances in product standards, as a well as a safe and sustainable use of nanomaterials.