Want to attract males in rut? Use Trigger, a ready-to-use synthetic estrogen cream that mimics a female's ovulation. To develop this quality cream, we collected yellowish ovulation cream (natural estrogen) from a live doe before she was inseminated. The cream was then reproduced in the laboratory to perfectly match the scent bucks are looking for during the rutting season. The product quality will convince you to use it year after year. It' s very easy to use. The cream can be added on urine, sexual lure or synthetic urine pads.