Aluminium, an adjuvant MF59 (squalene oil), an adjuvant Thiomersal, also called Thimerosal Gelatine Sorbitol and other stabilisers Emulsifiers Taste improvers Products used in vaccine manufacture: Antibiotics Egg proteins (ovalbumin) Yeast proteins Latex (in packaging) Formaldehyde Acidity regulators Growing the active ingredients: Human cell strains, animal cell strains and GMOs Recombinant DNA technology Bovine products Other growing media