SYNGRO Holding is an embryo holding media in a non-refrigerated, non-animal origin formulation. It is designed to provide an environment closely resembling that of the uterus for maintaining embryos in an air atmosphere at temperatures from 18-25oC, for up to 9 hours.

Embryos should be recovered from the flushing solution and transferred to a covered petri dish containing SYNGRO Holding. Embryos can be held at room temperature for up to 9 hours or up to 20 hours at 4ºC. Embryos can be transferred using a straw containing SYNGRO Holding.

Recommended storage: 15-30ºC. DOES NOT REQUIRE REFRIGERATION. This product does not contain materials of animal origin.

The product contains hyaluronan, a linear polysaccharide of alternating D-glucaronic acid and N-acetyl-D-glucosamine. Embryos have been shown to have surface receptors for hyaluronan, which is involved in the regulation of gene expression, cell proliferation and cell differentiation. Hyaluronan has been used very successfully as a replacement for serum or serum-based products in a number of embryo culture and freezing studies.