The present invention is directed to a preparation of an adjuvant system to achieve required level of humoral and cellular immune response against antigen of interest. The current invention provides an adjuvant system comprising an immunostimulating reconstituted influenza virosomes (IRIVs) and immunopotentiators. The current invention illustrates that an antigen is adsorbed or incorporated into IRIVs and further formulated with lipophilic adjuvant such as MPL or glucopyranosyl lipid adjuvant (synthetic analogue of MPL).