Embryo glue

Embryo glue is a culture medium enriched with hyaluronan used at the moment of transfer, on the theory that it helps the embryo stay in place and interact with the lining. It does not literally glue anything. Some studies suggest a modest benefit and others do not, so it is best regarded as an add-on with uncertain benefit and an additional cost.

Also known as: hyaluronan medium, EmbryoGlue

Last reviewed: 8 September 2026. Written by the Antega Editorial Team. General information only — always follow the advice of your own clinic, doctor or pharmacist.