Vaccinen består af højtoprensede viruslignende partikler (VLP’ er) af det vigtigste kapsidprotein L1 fra HPV- typerne 6, 11, 16 og 18.
Gardasil is an adjuvanted non-infectious recombinant quadrivalent vaccine prepared from the highly purified virus-like particles (VLPs) of the major capsid L1 protein of HPV types 6, 11, 16 and 18.