Scholars disagree about the proper justification of human rights and which rights qualify as human rights. While some argue for a very limited set of human rights, others defend more comprehensive accounts. In this paper I suggest that a defence of a comprehensive set of human rights can be strengthened by combining constructivist deontological and well-being based teleological justifications. To this end, I discuss two prominent proponents of constructivism and the well-being approach: Rainer Forst and Simon Caney. Forst criticises teleological (...) justifications for grounding human rights in non-universalizable conceptions of the good, such as autonomy, that can reasonably be rejected by others. Constructivism, in contrast, does not rest on any particular idea of the good life and thus allows for greater ethical plurality. I reject this specific criticism, arguing that Caney’s approach ultimately allows for the same plurality. I also highlight that constructivism on its own cannot justify rights of people who are not (yet) able to reason. The well-being approach provides substantive arguments for the rights of these individuals. However, these arguments are made with the framework provided by constructivism. I hold, contra Caney, that Forst’s right to justification is primary in that it is the unavoidable basis from which justice issues can be dealt with in a reasonable way and that the main function of human rights is to protect the equal moral status of persons. I conclude that Forst’s constructivist and Caney’s well-being approach are complementary rather than rivalrous: when combined they provide a more robust justification for a comprehensive set of human rights than considered separately. (shrink)