Abstract: A process for making parasite repellent absorbent material, comprising: a). spraying an absorbent material with a solution or suspension, said solution or suspension comprising at least one solvent and at least one parasite repellent to achieve a desired loading of the at least one parasite repellent; b). drying the sprayed absorbent material so that the solvent present evaporates; and c). storing the dried absorbent material away from direct sunlight for at least 24 hours to form parasite repellent absorbent material. The parasite repellent absorbent material produced by this process may be used to make a parasite repellent collar.