This article aims to problematize the marketing network that markets the stem cells present in the umbilical cord through the analysis of statements made by relatives about their relationship with the umbilical cord, collected on homepages of Brazilian private banks. Based on the Foucaultian archegenealogical studies, we argue that one of the facets of contemporary biopolitics is centered on the regulation and normalization of bodies and health, as well as the accumulation of biological capital through the autologous storage of umbilical cells. It is specifically a cut of a master's research carried out by the research laboratory in "Science, Technology and Creation", within the scope of the Graduate Program in Contemporary Culture Studies, Federal University of Mato Grosso. In this work, we call attention to the forms of subjectivity that emerge in the commercialization of umbilical stem cells, characterized mainly by self-management and indebtedness.