Vetri Repel Spray is a natural flea and tick repellent formulated by nature. Vetri Repel Spray combines Brazilian oils derived from certified forests which act as a natural force-field to shield pets from unwanted pests. The oils have been used for centuries by the indigenous people of the Amazon forest to keep pests from detecting a desirable scent on their skin, thus creating avoidance. This product contains no drugs or synthetic chemicals with no known toxic effects from licking the skin. Vetri Repel Spray is safe for use on beddings and could be applied to collars that are able to soak up the oils. For use on dogs, cats, and horses only.