Tracing aluminium adjuvants in viable cellsTo improve the effect of a vaccine, adjuvants are often included in the vaccine formulation.An adjuvant is a molecule that potentiates the immune response induced by the vaccine, and commonly used adjuvants in vaccine formulations are aluminium salts as aluminiumoxy-hydroxide and aluminiumhydroxyphosphate. In spite of the extensive use of these mineral adjuvants since the 1920s, it is still not known exactly how they work.