This Practice Note considers manufacturer liability under consumer protection, product safety, and advertising rules in the UK at three key trigger points throughout a product lifecycle: product safety requirements (manufacturing and labelling); claims relating to consumer products (labelling and marketing); and guarantees, warranties and after-sales promises (post-sale contractual liability).For further general guidance on consumer protection and product regulation, see Practice Notes:•Key consumer legislation—summary•Key product regulation legislation and resources—summaryThis Practice Note addresses:•product safety•manufacturer liability for damage caused by defective products•manufacturer liability for placement of unsafe products on a market•key practical steps on product safety•product claims as unfair commercial practices•breaches of the UK Code of Non-broadcast Advertising and Direct & Promotional Marketing (CAP Code)•key practical steps on product claims•guarantees and warrantiesConsumer law applies throughout supply chains. Whilst the end business-to-consumer (B2C) communications and contractual arrangements are often the primary focus of guidance, commentary