This article attempts to show a way in which social science research can contribute in a meaningful and equitable way to philosophical bioethics. It builds on the social science critique of bioethics present in the work of authors such as Renée Fox, Barry Hoffmaster and Charles Bosk, proposing the characteristics of a critical bioethics that would take social science seriously. The social science critique claims that traditional philosophical bioethics gives a dominant role to idealised, rational thought, and tends to exclude social and cultural factors, relegating them to the status of irrelevancies. Another problem is the way in which bioethics assumes social reality divides down the same lines/categories as philosophical theories. ...