“…Nevertheless, the need to establish strict limits for payment is widely recognized to avoid the commercialization of human reproductive cells [1][2][3][4], the exploitation of donors [3,5,6] and the concealment of relevant health information to be accepted as a donor [2,7], while ensuring solidarity-based motivations to donate, such as helping a childless couple [4,[8][9][10]. The non-differentiation of payment according to donors' characteristics or the number and quality of gametes has also reached a consensus, aiming to avoid 'positive eugenics' and the commodification of bodily material [3,11].…”