Used as a potent adjuvant in vaccine formulations to enhance the body's immune response. It is particularly effective in stimulating both antibody production and cellular immunity, making it valuable in cancer vaccines, infectious disease vaccines (such as malaria and HIV), and other therapeutic vaccines. Its ability to promote strong T-cell responses allows for improved efficacy even with smaller amounts of antigen. Due to its natural origin and high potency, it is often included in clinical-stage vaccine candidates undergoing evaluation for human use.