One of the challenges of providing healthcare services is to enhance its value (for patients, staff and the service) by integrating the informal caregivers into the care process, both concretely managing their patient's health conditions and treatment (co-executing) and participating in the whole healthcare process (co-planning). This study aims at exploring the co-production contribution to the healthcare process, analysing whether and how it is related to higher caregivers' satisfaction with service care and reduced staff burnout, in the eyes of the staff.