ABT HOLDING medium was developed to provide embryos a sustainable and healthy environment after collection and before transfer or freezing. While ABT Holding is not meant to act as an extended culture medium for incubation, it does contain AVariety of components such as amino acids, nutrients and energy sources that facilitate embryo viability. Includes amino acids, energy sources, Gentamycin as an antibiotic and is Hepes buffered. 100% traceable components including certified New Zealand sourced BSA. Filtered to 0.1uM; no additional filtering required. Tight quality control standards equal consistent results. Durable EVA packaging with a non-latex needle septum port and removable cap. Made in the USA with two decades of experience.