A bio-based future where biomaterials are part of everyday life is the vision and entry point of this thesis. Achieving this scenario requires changes in socio-technical systems by cutting non-renewable materials and redefining cultural and behavioural dynamics in the production-consumption value chain. With a focus on user experience, this research proposes the following. How can the user experience with materials be used as a driver in the biomaterial transition? Several theories related to materials, diffusion of innovations, and sustainability transitions address the challenges and potentials of the biomaterial transition separately. However, there is not an integrated approach. This research aims to tackle this gap articulating a literature review and three exploratory studies as research stages. The results broaden the perception of biomaterials as disruptive innovations. Thus, deepening in their role in shaping social practices redefine the