The present invention relates to a method for preparing an extract from ginkgo biloba having a reduced content of nonpolar plant ingredients and nonpolar impurities due to environmental influences compared to the initial extract, the method being characterized by the following method steps: (a) preparing an aqueous-ketonic or aqueous-alcoholic solution of an initial ginkgo biloba extract and applying the solution to an adsorber resin, (b) eluting the adsorber resin with an aqueous C.sub.3-C.sub.6 ketone or an aqueous C.sub.1-C.sub.3 alcohol and (c) optionally concentrating and drying the extract solution thus obtained to the dry extract. The invention further relates to an extract (liquid extract or spissum extract as well as dry extract) from ginkgo biloba having a reduced content of nonpolar plant ingredients and nonpolar impurities due to environmental influences compared to the initial extract, which is obtainable by the method of the present invention.