Social innovations are often assumed to have high potential for promoting sustainable development and transformation towards more sustainable consumption practices. Meanwhile, the spectrum of social phenomena that are labelled as socially innovative is quite diverse and heterogeneous, ranging from urban gardening projects to swapping and sharing platforms to Do-It-Yourself workshops. This article describes a research project where sixty-two cases of potential social innovations for sustainable consumption were analysed, based on a process model combining innovation and practice theory. Thorough document and case analyses revealed five distinguishable types of innovation: Do-It-Together, Strategic Consumption, Sharing Communities, Do-It-Yourself and Utility-enhancing Consumption. These are mainly characterised by differences along four dimensions innovativeness, formality, communality and personal engagement each of which is connected to potential problems and advantages in the process of initiation and stabilisation of innovative practices. Based on this typology, type-specific measures to overcome problems and strengthen advantages are presented which help practitioners in politics, administration, associations and foundations to support social innovations for sustainable consumption. For sustainability science the typology can add to a more thorough understanding of the multi-faceted field of social innovation for sustainable consumption. Thereby the study takes up theoretical and practical desiderata stressed by other authors in this field. However, we agree with other authors that further research is necessary to assess the ecological, social and economic impacts of social innovations for sustainable consumption. (C) 2015 Elsevier Ltd. All rights reserved.