This is a popular and broadly used term. Although, with no official regulatory definition, it is hard to say for certain whether a product is natural.
In 2024, the European Parliament voted to ban vague terms such as ‘environmentally friendly’ or ‘natural’, unless a business could provide evidence of such claims, affecting products that are traded in the EU. It is important to look for products with a certification seal such as NATRUE or the Soil Association as this can provide defined guarantees for natural cosmetics based on a rigorous criteria.