AS04 adjuvant

AS04 is an added ingredient used in some vaccines to boost the immune response. It combines alum (a common vaccine adjuvant) with a small amount of a substance called MPL, which helps the body recognize the vaccine more effectively. This combination enhances the body's ability to develop protection against infections, meaning fewer doses might be needed for effective immunity. AS04 is used in vaccines like the HPV vaccine to improve their effectiveness and durability. Overall, it helps your immune system respond more robustly to the vaccine's target germs, providing better and longer-lasting protection.