The invention relates to Boswellia derived fraction selected from non-acidic Boswellia low polar gum resin extract fraction (BLPRE), Boswellia volatile oil fraction (BVOIL) or Boswellia oil fraction (BOIL) comprising BLPRE and BVOIL in combination with biological agents for enhancing the bioavailability of said biological agents. The invention also provides composition(s) comprising at least one component selected from Boswellia oil (BOIL), Boswellia volatile oil (BVOIL) and Boswellia low polar gum resin extract (BLPRE) in combination with a biological agent for increasing the bioavailability of biological agent.
