Relatively little is known about how born-global companies (BGs) innovate abroad during their lifecycle or about how the international innovation activities of BGs are related to their social capital. The network concepts of relational, structural, and cognitive social capital are almost completely neglected in the international business literature on BGs' innovation activities according to a dynamic approach. The aim of this research is to study the direct and indirect effects of structural, cognitive and relational social capital on BGs' product innovation by including the mediating role of market and technological knowledge acquisition. We develop a set of hypotheses that we combine and test in a structural equation model. We provide results with theoretical and practical implications for BGs in terms of both social capital and innovation abroad.