Regen Lab SA 1 article published in JoVE Bioengineering Production of Autologous Platelet-Rich Plasma for Boosting In Vitro Human Fibroblast Expansion Sarah Berndt1,2, Antoine Turzi2, Ali Modarressi1 1Department of Plastic, Reconstructive and Aesthetic Surgery, Geneva University Hospitals, Faculty of Medicine, Geneva University, 2Regen Lab SA This protocol presents a device that produces PRP to boost the in vitro expansion of cells in a 100% autologous fibroblast culture system.