REACH (Registration, Evaluation, Authorisation and Restriction of Chemicals) is a European Union regulation that aims to improve the protection of human health and the environment from the risks that can be posed by chemicals. It applies to all chemical substances, not only those used in industrial processes but also in our day-to-day lives, such as cleaning products, paints, clothes, furniture, and electrical appliances. Companies that manufacture, distribute, or import more than one ton of substances per year must apply for authorization of Substances of Very High Concern (SVHCs) to demonstrate compliance with REACH. They are also prohibited from using substances that are on the restricted list. To comply with the regulation, companies must identify and manage the risks linked to the substances they manufacture and market in the EU. They have to demonstrate to the European Chemicals Agency (ECHA) how the substance can be safely used, and they must communicate the risk management measures to the users. If the risks cannot be managed, authorities can restrict the use of substances in different ways. In the long run, the most hazardous substances should be substituted with less dangerous ones.