The article explores the concept of cocreation as a solution to the lack of cooperation in public health. It discusses the transformation of traditional health prevention and coordination of health services to health promotion and capacity building, involving the whole of society. The authors examine this shift from government to governance in Norwegian health system, highlighting the challenges and opportunities of network and partnerships. The article reviews different political governing regimes, including Traditional Public Administration, New Public Management, and New Public Governance, and their impact on health collaboration. The authors argue that cocreation, as part of New Public Governance, can address complex and dynamic problems by mobilizing relevant actors in collaborative processes. The article concludes that cocreation demands active public participation and clear national framing to ensure high capacity and legitimacy in health cooperation based on the New Public Governance regime.