HiGlutaXL™ medium contains the stabilised dipeptide form of L-glutamine, L-alanyl-L-glutamine. HiGlutaXL™ Dulbecco’s Modified Eagle Medium contains 4.5gms glucose per liter, L-alanyl-Lglutamine, sodium pyruvate and sodium bicarbonate. HiGlutaXL⢠medium contains the stabilised dipeptide form of L-glutamine, L-alanyl-L-glutamine. HiGlutaXL⢠medium offers several advantages over the conventional glutamine containing media. Dipeptide form prevents the intramolecular cyclization reaction, thus preventing toxic build -up of ammonia. L-alanyl Lglutamine incorporates L-alanine that protects the alpha amino acid group. Aminopeptidases within the cell break the dipeptide, gradually releasing both L glutamine and L-alanine for use by the cell. The gradual release of Lglutamine obviates the need to supplement L-glutamine frequently and allows liquid media to be stored at 4°C for longer periods. AL066G is HiGlutaXL⢠Dulbeccoâs Modified Eagle Medium with L-alanyl-L-glutamine and sodium bicarbonate. It does not contain sodium pyruvate.