ABSTRACT The present invention relates to a process for preparing extract(s) of urine and/or faeces of mammal in oil or fat comprising the steps of boiling urine or faeces of mammal with oil or fat, with continuous stirring until the water from the mixture is evaporated cooling the mixture and separating the liquid extract from the solid/semi-solid residue. The present invention also relates to extract(s) of urine and/or faeces of mammal in oil or fat prepared by the aforesaid process.