Pro-DeliverIN and Ab-DeliverIN provide an innovative method for intracellular delivery of proteins or antibodies with high efficiency. These serum-compatible, lipid-based reagents are perfect for assessing the function of proteins or to elucidate new molecular mechanisms. Pro-DeliverIN™ is a lipidic formulation designed for intracellular protein delivery. Ab-DeliverIN™ is a lipidic formulation designed for intracellular antibody delivery.